This article is about magical objects in general. For a list with links to articles about specific magical objects, see Category:Magical Objects.
Magical Objects are...
These are objects in which Voldemort stored part of his soul to try to keep himself immortal, so that if he was killed, he would still retain a feeble grasp on life as parts of his soul would be preserved in these objects.
Destroyed in Harry Potter and the Chamber of Secrets the diary contained the living memory of Tom Riddle from when he was a student at Hogwarts, as the heir of Slytherin Tom used the diary's power to get one of the present students Ginny Weasley to open the Chamber of Secrets. once in the Chamber the diary sucked life out of Ginny Weasley to restore himself as Lord Voldermort (anagram of "Tom Marvollo Riddle") this was destroyed with a basalisk tooth's venom causeing the living memory of Tom Riddle to explode and Ginny to regain conciousness
The Resurrection Stone
This was a small stone created by “Death” for the middle brother in the Deathly Hallows. It has the power to bring back the dead if one turns it over thrice in their hand. However, the dead brought back are more like shadows of their old selves. This stone was then in the ring owned by Marvolo Gaunt and then Tom Riddle. Tom Riddle turned it into a horcrux which was later destroyed by Albus Dumbledore. Dumbledore then placed the resurrection stone inside the first snitch that Harry Potter caught and left it to him in his will.
Salazar Slytherin's Locket
Destroyed in Harry Potter and the Deathly Hallows
Rowena Ravenclaw's Diadem
Destroyed in Harry Potter and the Deathly Hallows It was hidden in the Room of Requirement by Tom Riddle, or Voldemort, in an attempt to secure it. He learned the whereabouts of the diadem by convincing the Grey Lady (Rowena Ravenclaw's daughter) to tell him. It was originally hidden in a hollow of a tree in the forest of Albania.
Helga Hufflepuff's Cup
Destroyed in Harry Potter and the Deathly Hallows This cup was stolen by Tom Riddle, in an attempt to own something from each Hogwarts founder. Tom Riddle stole the cup from Hufflepuff's descendent Hepzibah Smith, and later killed her. After Voldemort transformed the cup into a horcrux, it eventually made its way into Bellatrix Lastrange's vault at Gringotts Bank. With the help of former Gringotts employee, Griphook (a goblin), Harry, Ron, and Hermione snuck into Gringotts, acquired the cup. Hermione and Ron used a basilisk fang taken from the Chamber of Secrets to destroy the cup.
Destroyed in Harry Potter and the Deathly Hallows Voldemorts "pet" snake that he made a horcrux
Harry Potter (As a Horcrux)
Destroyed in Harry Potter and the Deathly Hallows
The Deathly Hallows
These are the three Hallows that when united, can 'conquer' death. They are the Invisibility Cloak, the Resurrection Stone, and the Elder Wand. They are mentioned in the story "The Three Brothers" in The Tales of Beetle the Bard. The titular three brothers Antioch, Cadmus, and Ignotus Peverell created these three objects.
The Elder Wand
This is the most powerful wand in existence. This was the creation of Antioch. Made from a core of Thestral Hair and wood from the elder tree, it is a ruthless wand, only accepting ownership with power and not emotional attachment. This wand goes by many names such as the Deathstick and the Wand of Destiny. During the First Wizarding War,and part of the Second, Albus Dumbledore was in possession of it, who took it after defeating Gellert Grindelwald who stole it from Gregorovitch. Draco Malfoy disarmed Dumbledore, not knowing that 'the most powerful wand in the world' swore its allegiance to him. Harry Potter took Draco's own wand (not the Elder Wand) from him, and so, the Elder Wand realized that its owner was beaten, and thus, swore its allegiance to Harry. During the Second Wizarding War, Voldemort was searching for this wand. He eventually tracked it down to Dumbledore, and he violated his tomb to steal it from him. However, Harry was the true owner of the Elder Wand, and he used this fact to defeat the Dark Lord.
The Cloak of Invisibility
This was the creation of Ignotus. It enables the wearer to have full concealment no matter what spells are cast at it. Unlike normal Invisibility Cloaks, which wear out and lose their spells or get holes in them, this Cloak stays perfect no matter what. It enables the wearer to hide from death - at least, according to Beedle the Bard. It was passed along a family lineage, including the family of Harry Potter.
The Resurrection Stone
This was the creation of Cadmus, apparently, to taunt death. It has the power to bring back people from death, however it does not do it fully. They are neither alive, nor dead when called to Earth. It was once made into a Horcrux by Lord Voldemort, who wasn't aware of the stone's power. In addition, to call back the dead, one must turn the stone three times in your hand. The stone was lost in the Forbidden Forest, when Harry Potter dropped it when he went to confront Voldemort. It was apparently stomped into the ground by centaurs, who were running to Hogwarts Castle to fight the Death Eaters.
First Seen in Harry Potter and the Order of the Phoenix, these objects were invented by Fred and George Weasley for sale in their Joke shop Weasley's Wizard Wheezes. These objects work by enabling a person to insert one end into their ear and be able to hear the conversations of people on the otherside of a door. Can not work against imperturbable charms. Theses objects are used in Order of the Phoenix by the twins and their siblings to eavesdrop on the meetings of the Order. they are also used when Harry and the Weasley's visit Arthur in the Hospital on Christmas Day.
First seen in Philosopher's Stone, the Deluminator, also known as the Put-Outer until Deathly Hallows, in which Ron receives it in Dumbledore's will, this magical object is used in Philosopher's Stone, Order of The Phoenix and Deathly Hallows. It is used in Philosopher's Stone when Dumbledore drops Harry at Privet Drive after his parents are killed by Lord Voldemort. It is used in Order of the Phoenix when Moody, along with the rest of the Order of the Phoenix is taking Harry to Grimmauld Place.
The Time Turner
First seen in Prisoner of Azkaban, the Time Turner is a necklace that gives the wearer the ability to go back to a preferred time in the past. Plus, it is possible to include a second person to join the trip if the necklace part of the time turned is wrapped around them as well. It is unknown if a third person can also be included. This object is used when Hermione decides in her third year to take extra classes. Due to fact that some of her classes overlapped, Professor McGonnagall arranged a meeting with Hermione in order to have a time turner bestowed upon her. It is known that these Time Turners are in limited supply and that they are monitored by the Ministry of Magic.
See also Time Turner.
First read and seen in Goblet of Fire, a portkey is a regular household object such as a comb or a lamp that becomes a means of magical transport once a spell is cast on it by a witch or wizard. The destination of the portkey is identified by the witch or wizard who conjures it. To function the portkey, all one had to do was put a hand on it and hold on tight. The portkey would then send the person through a portal towards their destination. The set time can be disabled and set to activate on touch, as proven by the Triwizard Tournament Cup. The Portkey is usually an object that Muggles would pick up; a normal, sometimes dirty, object. It glows blue when it is time for the Portkey to activate, and Portkeys can transport even without wizards touching it, resulting in stranded wizards and a lonely Portkey arriving at the place it was supposed to. Portkeys are supposed to be authorized by the Ministry of Magic before creation, but this rule was broken by Albus Dumbledore. Any object can be turned into a Portkey. However, large objects such as buildings, bridges, or a pole stuck in the ground can be assumed to be unable to become a Portkey. The first mention of a portkey in Goblet of Fire is when Harry and the gang meet up with Amos Diggory and his son Cedric at a landing that contained a "mangy, old boot." This boot sent them to a plain where the Quidditch World Cup was being held. A second mention in Goblet of Fire is when Harry and Cedric are the only ones left to grab the Triwizard cup. They both grabbed it at the same time not knowing that it was a portkey, sending them to a graveyard where danger was ahead with Wormtail and Voldemort.
The Golden Snitch
Used in Quidditch, its capture ends the match and gives the Seeker's team an extra 150 points. It has a 'flesh memory' which is useful during disputed captures. It remembers the first touch, and even the maker of the Snitch uses gloves to craft it. It is about the size of a walnut and is golden with wings. It was used in place of a fragile bird called the Golden Snidget, which was almost driven to extinction over the popularity of Quidditch and the roughness of the Seekers. The 150 reward points comes from a man who gave a 150 Galleon reward to whomever could capture the fast and hard-to-see bird. Bowman Wright was the first to craft a modern Golden Snitch in the town of Godric's Hollow. In Harry Potter and the Philosopher's Stone, Harry accidentally swallows the Snitch in his first Quidditch match. In Harry Potter and the Deathly Hallows, Dumbledore bequeaths this Snitch to Harry. Dumbledore bewitches the Snitch to read "I open at the close" when it touches Harry's mouth. When it finally becomes apparent to Harry what this means, Harry opens it to find the Resurrection Stone.
See also Golden Snitch.
Mirror of Erised
The Mirror of Erised is a magical mirror which shows the deepest and most desperate desire of the person looking into it. In 1991, Harry Potter discovered the mirror in an empty storeroom after sneaking through Hogwarts with his Invisibility Cloak. Once he looked into the mirror he saw his dead parents and loved ones.  The mirror was later moved to the chambers of The Philosopher's Stone in the final chamber. A person could only obtain the stone by looking into the mirror and not wanting to use it but still find it. This was why Professor Quirrel could not obtain it once her reached the chamber.
A pair of Vanishing Cabinets can be used to transport witches and wizards between each of the cabinets are stored in Hogwarts. They were quite popular with Death Eaters during the First Wizarding War. In 1992, Peeves convinced Nearly Headless Nick to drop it in a classroom above Filch to get Harry Potter out of detention. In 1996, The Weasley twins pushed Graham Montague into the cabinet though he managed to escape. When Draco Malfoy found Graham, he asked about its properties and Draco realized that it could be quite useful for the Death Eaters. Later in 1997, Draco repaired it so that Death Eaters could get through via the other cabinet in Borgin and Burkes to help Draco assassinate Albus Dumbledore. It was probably destroyed when Vincent Crabbe used Fiendfyre in the Room of Requirement where it was being kept. 
The Goblet of Fire
The Goblet of Fire is the 'impartial judge' which chooses the Triwizard Tournament champions for each of the participating schools. Students who wish to enter write their name on a piece of paper and put it in the cup. Students would later find out as the Goblet 'spat out' the winning names. Once chosen, the contract is binding and competitors can not back out of the tournament. In 1994, a new rule was created not allowing students under the age of seventeen to compete with Albus Dumbledore creating an age line around the Goblet to stop students who try and are underage.  A Confundus charm was put on the Goblet by Barty Crouch Jr. (disguised as Alastor Moody) making it think there were four schools competing so he could put Harry Potter's name in it.
The Knight Bus
This bus is an emergency transport system for wizards, who can call it by raising out their wand arm in the street. It arrives instantly, but it is a transport that not many wizards are keen to use, as it is an immensely uncomfortable, bumpy, and nauseous ride. It was conducted by Stan Shunpike during The First Wizarding World, through the Second, but not during the Second, because he was mistakenly arrested as a Death Eater.
This is a magical device that wizards use to control and channel their magic. They are only available to a wizard or witch when they reach 11 years of age, and can only be used at school until the wizard or witch is 17. There are many makers of magic wands, and each have a different way of making them. There are different 'wand woods' that are even familiar to Muggles that make the wand. The cores are made one of several different elements: phoenix tail feather, dragon heartstring, unicorn hair (these three being the ones used by Ollivander), thestral hair (extremely difficult to work with, only used in the Elder Wand (see above)), and Veela hair. The wand picks the master, and the best results of magic come from where there is a strong affinity with the wand and the wizard. (see Wandlore )
Harry Potter's Wand
11 and a half inches, holly and phoenix feather. The phoenix feather was from the same phoenix as Tom Riddle's wand was made from.
The Marauders Map
Remus Lupin, Peter Pettigrew, Sirius Black, and James Potter (Messers Moony, Wormtail, Padfoot and Prongs) created the Marauders Map to map out Hogwarts and to be aware of any people walking around in the castle. The map, being suspicious and rule-breaking, can only be activated if someone taps it with their wand and says "I solemnly swear that I am up to no good." Only then will the seemingly plain piece of parchment will show its contents. To wipe the map blank, one must tap it and say "Mischief Managed." The map also plays pranks on those who try to force their way into its contents, such as Severus Snape. The map has powers by showing the grounds of Hogwarts and a real-time viewing of people in the castle, which are labeled in the map. The map was passed down to Harry Potter.
See also The Marauder's Map.
The Sword of Godric Gryffindor
With rumors of it originally being stolen by Godric Gryffindor (which turned out to be false), this is a goblin-made sword. It takes in only that which strengthens it, which gave it the power to destroy Horcruxes when Harry Potter used it to stab the basilisk, the venom of which can destroy Horcruxes. It had to power to appear to any student who asked for help through the Sorting Hat, which was made in use by Harry Potter and Neville Longbottom. It was used to destroy the Slytherin Locket Horcrux, the Nagini Horcrux, and the Ring Horcrux.
A shallow stone basin with carvings of runes and other symbols on the sides, the Pensieve is a magical device allowing the user to deposit memories, his own or another's, and relive them. Dumbledore has a Pensieve in Harry Potter and the Goblet of Fire. When he leaves it (and Harry) unattended, Harry stirs the silvery contents with his wand, sees what appears to be a room, and leans over to get a better look. As soon as the tip of his nose touches the Pensieve, Harry is transported into what turns out to be Dumbledore's memory of a hearing of the Wizengamot.
The Pensieve is used by Severus Snape in Harry Potter and the Order of the Phoenix to store memories away from Harry's prying eyes when he teaches Harry Occlumency. Harry also manages to take a look into the Pensieve, to his and Snape's horror.
Finally, Harry uses the Pensieve in Harry Potter and the Deathly Hallows to relive the memories given him by the dying Snape. The memories are crucial to Harry's ultimate understanding of his role and fate.
The Philosopher's Stone
Also known as the Sorcerer's Stone, this stone provides immortality to those that use it. In Harry Potter and the Philosopher's Stone, Voldemort seeks the stone to provide himself with the Elixir of Life, and uses Professor Quirrell to aid him. Harry Potter finds out about the stone, and thinking that Severus Snape is trying to steal it, he goes after it.
Created as a part of Weasley's Wizard Wheezes by Fred Weasley and George Weasley, this is a joke shop product marketed as "A range of sweets to make you ill." These include Fever Fudge, Nosebleed Nougat, Puking Pastilles, Ton-Tongue Toffee, and more. These sweets were very popular among Hogwarts students, especially while Dolores Umbridge was there. The sweets were also used by Harry Potter, Ron Weasley, and Hermione Granger at the Ministry of Magic as they attempted to find a Horcrux (Slytherin's locket).
A magical mirror which allows the owner to see how close his/her enemies are to them. First seen in Professor Moody's office in Harry Potter and the Goblet of Fire. It was shown depicting enemies of the fake Professor Moody while he gave Harry hints on how to defeat the dragon task. Later in the same book, it showed Professors Dumbledore, McGonagall, and Snape advancing towards Moody's office. A foe glass was also created by the Room of Requirements in Harry Potter and the Order of the Phoenix and showed Professor Umbridge and the Inquisitorial Squad closing in on the room.
Similar to the foe glass, the Sneakoscope is a type of Dark-Detector. Invented in the 18th century by Edgar Stroulger, it resembles a glass spinning top and it lights up, spins and whistles when someone untrustworthy is nearby. In Harry Potter and the Prisoner of Azkaban, Ron Weasley purchased a 'pocket' Sneakoscope in Egypt as a thirteenth birthday present to Harry Potter. Hermione Granger also gave Harry a Sneakoscope for his seventeenth birthday, which later on alerted them of the Snatchers outside their tent who appeared when Harry accidentally said Voldemort's name, which was Tabooed. Unfortunately, it also alerted their presence to the Snatchers.
A small sphere which turns red when you have forgotten something. First seen in Harry Potter and the Philosopher's Stone, when Neville Longbottom received one from his grandmother. Later in that same book, he dropped the remembrall during his first flying lesson, when he fell to the ground. Draco Malfoy picked it up, and would not give it to Harry, who then chased after him. Malfoy threw the remembrall toward Hogwarts castle, and Harry flew to it, and caught it. This was all seen by Prof. McGonagall, who saw potential in Harry to be a seeker for the Gryffindor Quidditch team.
Mad-Eye Moody's Magical Eye