Of the approximately 4,500 different dōgu featured in Doraemon, most appear only once:
* Adaptation beam (テキオー灯, Tekiō Tou?) is another often-used gadget which enables the user to adapt to any kind of hostile environments, including outer space and deep undersea.
* Air glue allows the user to stick things in the air.
* Air Crayons (空気クレヨン, Kuuki Kureyon?) are used to draw things in the air, which then become real. Also there is a air eraser for erase the drawings.
* Air tubes are nose plugs that allow the user to breathe freely underwater.
* Almighty pass (オールマイティパス, Ōrumaiti Pasu?) is a passport which grants the holder access to anywhere and anything without cost or identification. Nobita once used the pass for free taxi rides, going into pubs, and visiting a famous celebrity's house. The pass is very expensive and has an expiration date which requires renewal.
* Animal biscuits (変身ビスケット, Henshin Bisuketto?, it means Transforming Biscuit) are animal crackers which transforms the consumer into the animal the biscuit is shaped after for a short period of time.(It effect works until 5 minutes)
* Antenna allows the user to be prepared for hazards in advance (though the wearer won't know what will actually happen). For instance, the antenna induced Nobita's future dad (Nobisuke) to bring a spare pair of pants before going out because it knew he will be splashed with water from a puddle later.
* Anything Mine Gas is a gas that makes anything sprayed with it attracted to the sprayer and flee from anyone else.
* Anywhere Gas serves the same function as the Anywhere Door (Dokodemo Door) except it's in the form of a pink mist emitted by a machine. It was used once in the "Nobita and the Animal Planet" movie before blowing up at the end. The product itself was removed from the 22nd Century market due to its instability and customer complaints.
* Apartment tree is a self-growing underground apartment that completes in 10 minutes. However, it can only provide living spaces for 24 hours (one day), after that the spaces provided will be refilled by earth.
* Bamboo horse (ウマタケ, Umatake?, A play on takeuma, which means "bamboo stilts") is a hybrid creature combining the horse and the bamboo, but is highly temperamental. It needs to be fed carrots and cared for to become loyal. Doraemon gives one to Nobita in order for Nobita to win a stilts walking contest.
* Bird hats are hats shaped like heads of birds. The wearer will have the same ability as the type of bird worn. For example an owl hat will make the wearer inactive during daytime, while an albatross hat requires the wearer to sprint before flying.
* Bomb of Equality is a miniature missile launching platform. It holds a bomb which can be filled with the "essence" of a person (such as a solution of dirt under his fingernail), and launched to explode into ashes. Then, for the following day, everybody within the explosion radii of the bomb will share the "essence" provider's characters, habits, or even bad lucks.
* Chocolate Heart (ココロチョコ, Kokorotyoko?) is heart-shaped chocolate that causes the consumer to have the same idea as, or agree with, the person who eats the first piece.
* Choto Ma-timer A time stopping Pocket Watch. With a simple touch of its upper button, time freezes around the user, as another touch restores Time Flow. (Seen on "The Night before the Wedding" Special.)
* Cloud hardening gas (雲かためガス, Kumokatame Gasu?) is a gas which solidifies clouds upon application, allowing the clouds to be walked upon. Doraemon and his friends once used this gas to construct a cloud city in the movie Nobita and the Kingdom of Clouds.
* Confessors' Crickets (ペコペコバッタ?) are small robotic crickets which enter a designated target's nostrils and forces the person to confess everything he/she did wrong--from silly blunders to major crimes. The crickets can only be expelled from their targets through a forced sneeze induced by pepper.
* Deep sea cream allows the user to go underwater for extended periods of time without need for air or insulation from the cold.
* Duplicating mirror is a mirror that allows one to duplicate any object by putting the object in front of the mirror. After a few seconds, the reflection becomes real and the user can reach inside the mirror to retrieve the duplicate.
* Epidemical viruses are black powder used to spread a popularity trait to everyone.
* Fairy-tale glasses a pair of glasses with the ability to enable the wearer to talk to animals and plants.
* Forgetful stick a stick which would make a person forget things, that happened on a particular time frame, once hit with. The time frame can be set using a dial.
* Fluffy medicine considerably lightens the weight of the users, allowing them to float into the sky. Taking too much at once can be disastrous.
* Horror Story Lamp anything said by the will-o-wisp will actually happen, in a logical way. For example, when Nobita said plates would shatter and a knife would enter a room, but a thief entered the house.
* Instant Christmas tree is a Christmas tree that grows instantly when planted. Similar tools include the instant vine, which grows into the sky moments after planting.
* Invisible Lacquer is a spray-can filled with a lacquer that makes anything sprayed invisible. Nobita steathily took it from Doraemon to play pranks on his friends and family.
* Lucky Star An edible Star-Shaped sweet which grants its user 3 hours of striking Luck. Nobita used it to rescue one of his friends in Nobita and the Animal Planet movie with some cunning and startling luck.
* Lightning cloud is a small floating cloud which unleashes lightning bolts when activated by a pulling switch. Doraemon gives it to Nobita to help him overcome his fear of thunder. The lightning bolts are not as strong as the real thing but powerful enough to frighten people and wreak havoc.
* Magic Hands are gloves that, well... It puts your arms to shame. Nobita used them to pick on people without actually standing next to them.
* Magic Mouth seen in an eyecatcher, it allows the wearer to eat from a distance.
* Magic Oshiri is a (rubber?) torso which causes pain to that area when spanked. Its like Magic Hands made for spanking.
* Mecha Maker is a machine which remembers the user's drawing of a giant mecha (usually of science fiction origin) of his/her own desigh, and feed on raw materials (Nobita used old toys, for example) to build the design into a functional mecha. The constructed mecha will be powered by the user via a remote control. The size and toughness of the constructed mecha depend on the quality and quantity of raw materials fed into the machine.
* Memory bread (アンキパン, Anki pan?) is a bread used to imprint pages, which after ingestion, will imbue the consumer with the content imprinted on the bread. However, after a day everything you memorized goes away. While studying for an exam, Nobita ate too much bread that he got an indigestion and had to start all over.
* Memory Disc an LP disc that stores a person's memory. The stored memory is then played in a special LP player. Nobita used it to help his Mommy find her wallet.
* Mini-airplanes are miniature toy airplanes (modeled after WWI aircraft) which can be piloted. The users shrink themselves down by stepping on the airplane's cockpit, after which they can engage other users in dogfights. The pilot is automatically ejected with a parachute after their plane is shot down.
* Personal guardian is a small human-shaped toy dressed as a samurai with a wooden sword that will protect from attack the person who gives him an old Japanese coin. Doraemon gave it to Nobita to protect himself from Gian and Suneo, with the later stole it from him. Nobita asked Doraemon for a second guardian, but both guardians had the same weakness: Shizuka.
* Present root (プレゼントルーツ, Purezento ruutsu?) is an antenna and a monitor that serves to trackback the origin of presents. Doraemon and Nobita used it to discover what was a mysterious big prize that Gian won in a TV program and steadfastly refused to tell them what it was. It turned out to be a giant teddy bear.
* Remote control for persons (人間リモコン, Ningen rimocon?) is a remote control that works on people. By putting a sensor on the person, the one with the remote controller can make this person go faster, rewind or pause. Doraemon uses it to make Nobita do his homework in the homonym episode, but then Nobita misuses it as always.
* Restoring beam is a lamp which is able to restore broken items back to their original state.
* Reverse bulbs are light bulbs which will turn surrounding areas to darkness when switched on.
* Samurai's Top-Knot is a fake top-knot modelled after the hairstyle of a samurai. Once placed onto the user's head, it will allow the user to perceive his/her surrounding world as that of ancient Japan (in particular Senkoku Period, the time where samurai thrived), and will change the user's speech pattern to a samurai's formal style. According to Doraemon, this is a common toy in the 22nd century for the children to "play samurai".
* Sea water filter is a straw-like device that instantly filters seawater when the user drinks through it.
* Secret keeping dog is a piggy bank-like dog. The user writes his or her secret on a piece of paper and feed it to the dog for safekeeping. But when the dog is fed with too many secrets, it will expel all the papers from its mouth.
* Shadow separation scissors are scissors which can turn a person's shadows into physical beings which then can be commanded by its owner. However, the shadow must be "glued" back after a certain amount of time or it will replace the owner and turn the owner into its shadow.
* Shocker Gun is a gun that emits a strong electrical beam, powerful enough to bring down a horse.
* Sniffy octopus is an octopus that spits out a substance which makes a person extremely annoying.
* Sticker of Souls are colourful stickers that can be stuck on any non-organic objects, such as furnitures and toys. This allows the items in question to be come anthropomorphic (as they are given "souls") and will express their feelings aloud. They will even act on their own to take actions against those who misuses them.
* Sticker of truth is a small rubber sticker which can be stuck to anyone in order to make the wearer tell the truth. Nobita once used it on Suneo because Suneo was flattering people for his own selfish motives.
* Superhero belt is a belt with a slot and a button on the buckle. When the user wears it on his/her waist and says "Suit On!", the clothing he/she wears will immediately transforme into a costume that resembles a superhero's garb. Then the user can write a made-up "superhero move" on the card included in the belt and insert it into the slot on the buckle, and actually perform that move, no matter how fat-fetched that "move" sounds. (Nobita invents a move called "Machine-gun Fist" which allowed him to perform a series of rapid punches; and Shizuka invented one called "I-Am-Sorry Ray" which allowed her to shoot a ray out of her finger and whoever got hit will immediately apologize.) However, the spelling of the move's name is critical to the performance of it.
* Super-strength candy is a candy that gives the person who ates it Superman-like strength. A nagging robot salesman left Doraemon a sample, that he threw into the trash. Nobita recovered it, ate it and tried to use it to get revenge on Gian and Suneo, not knowing the sample had a three-minute limit. He used the form in the sample box to buy a full one from the future, but Shizuka's toddler cousin ate it by accident and Doraemon went to the future to buy another candy to counteract the super-strength candy.
* Time camera is a camera capable of taking pictures in the past. The camera takes a picture that shows what the scene was according to the time set by its user. Nobita used it to find his dad’s missing wallet.
* Time TV is a portable television which can broadcast events from the past or the future.
* Transformation ring and cards is a tool that can transform a person to an animal. There are the animal cards that if the user inserts a card in the slot in the circle the person will transform to that animal. Nobita used it to transform in to a fish but putted the circle half part of the body only so he transformed in to the merman. In order to use it, the user must first naked.
* Water pressure gun is the underwater version of the air pressure gun. It was used by Nobita in one story to fend off a shark attack.
* Weather Machine is used in many episodes to freely control weather. Works by inserting weather cards into the machine.
* Underwater firewood is firewood that can be burned underwater.
* Yume-corder literally "dream recorder", it records and plays the most cherised dream of any person. Nobita wanted it to record Shizuka's dream, but ended up recording not only hers, but Doraemon, Suneo and Giant's as well. He wanted to know who Shizuka wanted to marry, only to discover she hasn't decided yet (her fiancé's face was blank on her dream).
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