Feather Wings Costume Accessory These large costume wings costume accessory includes one set of 37" x 40" feather wings. Made of 100% flame-retardant turkey feathers with plastic wiring for added stability. Choose from black feather wings or white feather wings when you buy these large costume wings. Discrete elastic straps hold these wings securely to your back. Use the black feather wings to finish a Maleficent costume, black swan costume or a fallen angel costume.