I was wondering, Although it's probably a little late now, If there could be a costume similar to that of the Santa outfit, which changes your entire sprite.
Like the Halloween holiday/event is coming up. How cool would it be to see witches and scarecrows and dracula's and the likes around town?
Easter, a bunny outfit
you get the idea. I think it would be pretty cool.
I found this on the interwebs some place and thought it looked awesome for Halloween