Elycium- you could always use craft foam instead. It wouldn't look as real as feathers, of course, and sealing would make them a bit delicate, but it is a nice alternative and can look really great.
I'd love to make a Pitch cosplay for my boyfriend, since Pitch looks like an animated version of him. It'd be so... simple! (she said, overconfident and oh-so-foolish).
I did love the movie. I can't wait to see it again!
Good luck everyone!