Please, please do NOT wear feathers on your outfits or headwear. Don't bring feathers at ALL. Feathers end up on the ground as MOOP. Sure they LOOK cool--but anyone wearing them is advertising the fact that they are either clueless about MOOP or just don't give a rat's ass if someone else has to pick up after them--because they will. Feathers will not stay attached no matter what you do-some of them WILL end up on the playa.
Just say NO to feathers!