So I was wondering; since we can have different antlers, pelts and masks, why not wings?

Be it the majestic wings of an eagle, or the mysterious dark wings of a bat, maybe even the spooky skeleton wings!!! Wings would give the player a little bit of height, able to fly!!!!
(was thinking about how cool it would be if a whole world was in the trees, where deer could play in the trees and fly around! that would be super fun!)