Make these in True White and you have bull horns. Make them in Fluorescent Red and you have a perfect set of devil horns for your costume.Like the Cat Ears, Alien Antennae, and and Mercreature Fins in the Halloween 2012 series, these fit on a standard headband.If you want to grab a pair right away, stop by the MakerBot Store!Horns were created by Matt.To attach to headband, stretch and place through the T-slot, then turn so it lays perpendicular.For best results, print with the following settings:Infill = 10 Layer Height = .25 Shells = 1