Billy Wilhelm also known as Gossamer and IV is a graphic artist that has worked through Deviantart, Flickr and TheYo in favor of both the yo-yoing community and his own personal goals. He has been involved with creating wallpapers, ads for the yo-yoing community as well as signatures for various yo-yo forum members. He has also worked with MadHouse to create the art on the side of the Unknown. Often called the "Vendetta of Plastics", IV is extremely talented with dye work on Plastic yo-yos and continues editing and maintaining a guide on yoyonation.com for members' success at their own dye work. He is a big fan of yoyojam, especially the Atmosphere and has noted that his current favorite yo-yo player is Eric Koloski.