The most up to date version of this contest's rules is at https://www.fimfiction.net/group/217156/portal-transformations/thread/529551/portal-transformations-contest-announcement-and-rules. Please ask your questions there.

Welcome to the Contest

"When Spike goes through the Mirror Portal from Equestria to CHS, he turns into a dog. What does X turn into when X goes through the Mirror Portal (or a similar portal)? You can pick X and the direction."

Myself (Mockingbirb), I'm especially interested in changes that are less usual, not so commonplace (although I suppose very unsual treatments of the 'usual' changes can be interesting too.)

You can see some examples of different portal transformations HERE (group's front page and folders) and HERE.

If you want a new story idea, something that no one has ever written before, 'portal transformations' can provide a practically infinite number of them.

FULL CONTEST ANNOUNCEMENT AND RULES HERE: https://www.fimfiction.net/group/217156/portal-transformations/thread/529551/portal-transformations-contest-announcement-and-rules