Magical costume
Anon gets more than he bargained for when a pony costume proves hard to take off
 
So you want to be a pet pony?
Anon finds Le MacGuffin that turns people into ponies, after using it on them self they decide to fulfill the fantasy of a PTFG writer and make them their pet.
 
Law and Pony:
Anon's actions land him under the jurisdiction of the Pony Rehabilitation Act, he must now adapt to life as a pony as he is reintegrate into society
 
Law and Pony, Pet edition:
Anon's actions land him in the Pony Education and Training program (P.E.T), he will now be retrained from a convicted criminal to an obedient and docile pet pony
 
Pone Space:
A catastrophe happens in space, killing Anon. Thankfully the ship he's on is able to replicate a new body for him, unfortunately it had to make some substitution due to memory loss. Anon must now deal with the threat with hooves if he ever wants his old body back
 
POMA:
The world is ending, humanities last hope is to download their minds into a computer and launch it into space. For some reason the master A.I. has turned every one into ponies.
 
Pon-E in the water
>And industrial accident contaminates the water supply with chemicals, any one exposed to the water runs the risk of becoming a pony
 
The Pony Wakes
>Anon, an almost normal human being at least before his fragile concept of reality is shattered when she wakes up from her coma. Anon is actually AnonMare, and she has been in a coma for many moons. Anon Must now adjust to a cartoon world being reality, and her old reality being a cartoon.
 
>A pony walks out of a bar
A local bar has a new drink on tap, (un)fortunately it has some un expected side effects