[Gallagher]

You can, but keep in mind that designs we use belong to us, so any designs submitted to us should be made only for us. Meaning, if this is a funky animal plush design that you were considering making and selling elsewhere, you might want to reconsider.

This isn't so much of a problem if it's a generic animal in a stylized form, I wouldn't say. But if it's something entirely unique and fun, and especially when it's something you spend a lot of time crafting, you might want to think it over a bit more.

MIND YOU, this isn't me saying "don't do it". We as a whole don't like even the idea of starting legal trouble with our users when they're only doing their fun and creative thing, and will generally remind people of this aspect of design contests whenever there might be worries.