I've always wondered how Derpy came up with the idea for her Nightmare Night costume. This was what I came up with.
Derpy Hooves / MLP:FiM (c) Hasbro /
All Levels At Once (c)
EDIT: Wow, featured on Equestria Daily. Thanks for all the attention and love, guys!
EDIT: Wow, so many guys recognized Levels even though I forgot to credit him at first ^_^;