Shows often pay homage to others as they go and my little pony is no different. So you will have thirty minutes to draw either ponies doing something related to another fandom or a character from another fandom as a pony.
It can be a show a book a movie or anything else you can think of, but regardless when the inbox opens you will have fifteen minutes to send in the art to the inbox.
so be it allonsy, exelliarmus, or walking into mordor just pick something to pay homage to and go wild.