For my group's Theme Month challenge: October pony. I decided to do something a little strange, and give a pony Multiple Personality disorder.

Name: Trick or Treat

Gender: Male

Trick:

On his right Flank is the Trick Cutie Mark. A Silly green Balloon being popped by a pin. When he is Trick, he likes to travel during the Night setting up silly traps in Ponyville. Trick is extremely giggly, laughing at almost anything. His scarf is enchanted to work like an extra set of hands, which helps him carry his traps with him. He is never malicious on purpose, but sometimes his Tricks can go too far. When this happens, he generally snaps out of Trick and becomes Treat.

Treat:

On his left Flank is the Treat Cutie Mark. A Halloween bucket with candy coming out of it. When he is Treat, he likes to travel during the day hiding candy in pony's houses, or objects. Treat is very shy, but gentle natured, and loves being around other ponies. His scarf is enchanted to work like an extra set of hands, which helps him carry his candy buckets with him. He makes up for Trick's joking nature by filling the victim's home with candy. His favorite hiding spots are inside buckets, shoes, and under pillows. If somepony is mean to Treat, he will turn in to Trick, who will deal with the pony.

Besides October, he works in his Candy and Comedy shop. There he creates new candies for everypony to enjoy, even if some of them are way too bizarre to actually give out. On the other side of his shop is a Comedy club, where Ponies come together for free shows and candy.