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The Fagiggily Gland is an organ unique to Fairies and Anti-Fairies and gives them the ability to shape shift into different objects or creatures. Fagiggly glands can fail which will cause them to need a transplant. If the fairy has no siblings, they need to get their transplant from their Anti-Fairy. This helps them both as if the Fagiggily Gland of the fairies goes bad, the same gland of their Anti-Fairy counterpart goes "good", which is looked down upon by anti-fairies.
DescriptionEditThe Fagiggily Gland is a star shaped organ that every fairy has. It is the reason why fairies are able to shape shift into different objects to disguise themselves. Fagiggly failure is seen as an embarrasing topic for fairies. As seen in The Gland Plan, if a fairy is suffering from Fagiggly failure, they can no longer be fairy god parents because it would reveal their identity. When Cosmo was unable to control his shape shifting, he often transformed to objects that hurt Wanda such as a fork, jackhammer and chainsaw. Fairy babies have to be taught how to shape shift, as seen in Sooper Poof, when Poof's incorrect shape shifting reveals him as a fairy but is luckly mistaken for a super baby.
Cosmo and Wanda specifically have disguised themselves as many different animals and objects to be with Timmy. They have also used their diguises to hide timmy, help him in some task or an object so they can be around Timmy's parents or friends. They usually keep their trademark colors of Cosmo being green, Wanda being pink, and Poof being light purple.
Faires as PetsEdit
Many fairies disguise their identity as fairies by looking like a pet of their god child. Although Cosmo, Wanda and now baby Poof, appear as many different types of pets for Timmy, they remain unquestioned and undetected. The most common is gold fish, where Cosmo, Wanda and Poof live in a fish bowl and have taken up residence in the tiny castle. When Timmy's Dad became a genius, he thought Cosmo and Wanda were genetically engineered super fish.
- Gold fish
- Toucans (When Cosmo and Wanda were Bippy's god parents.)
- Parrots (When Cosmo and Wanda were Denzel Crocker's god parents.)
- Ferret (Juandissimo Magnifico, Remy Buxaplenty's god parent.)
- Rhinoceros (When Jorgen Von Strangle was Timmy's temporary fairy.)
- Hamsters (The disguise of two fairies in Channel Chasers)
These pets vary, different breeds of dogs and cats. As dogs, Cosmo, Wanda and Poof are in the Crimson Chin comic book as Timmy's dog sidekicks, Ace the Chin-Hound and Clefto along with puppy Poof. In different time periods of their lives, fairies are diffent animals to suit their god child. Only Remy Buxaplenty's mother has mentioned the "odd colored" animal. Otherwise the colors are un-noticed.
Timmy usually takes Cosmo and Wanda to school with him, commonly being his pencils, pens or characters on his book covers. Notably, Romeo and Juliette. They have also been astronauts on Timmy's magic lunch box where he wishes for what he wants for lunch. When Timmy has missed the bus, Wanda and Cosmo turned into a bike and bell for him to ride to school, which wasn't exactly what he had wished for when he wanted a ride to school. They also were an art project called "Idiots in Love" when Princess Mandie encases them in carbonite. 
- Pens, pencils, eraser
- School books, drawings on binders, papers, and chalk board.
- Volleyballs, basketballs
- Milk, jello, and a lunch box.
Cosmo, Wanda and Poof being disguised at school helps Timmy if needs to make wishes. Not being detected while at school with Timmy is most important due to the fact that Timmy's teacher, Denzel Crocker is obsessed with capturing a fairy godparent. Despite the fact that there are other children who attend Dimmsdale Elementary that have fairy godparents, we never see any other fairies in disguise.
Another disguise method is blending in with the environment around their god child. Usually when another person is around, or they have to shape shift into something suddenly to remain a secret. This is ever changing, from animals to food to inanimate objects.
- Mice, rats, moles and snails.
- Birds, humming birds, and a woodpecker
- Bumble bees and butterflies, ants, fleas, and flies.
Disguising themselves as animals, Cosmo, Wanda and Poof, are able to accompany Timmy around his neighborhood. Most often times, in the school playground, parks or during certain wish situations. During The Secret Origin of Denzel Crocker, Cosmo and Wanda changed themselves, along with Timmy, into humming birds to spy on Crocker. In many situations pink and green mice are nearby Timmy when he is talking to Dad and Mom or Vicky.
It is unknown whether humans possess fagiggly glands, considering many people including Timmy and Vicky, have had the ability to shift into numerous forms throughout the series. Perhaps maybe a fairy godparent lends a faggigly gland to the godchild for the time-being. This is never explained.