The Signature Series was a program where an artist would design a model, and then the Stone Co employees painted them. Each model had a stylized sticker of the artists' signature, and came with a Certificate of Ownership.
Magic is a dapple grey TWH designed by Caroline Boydston. There were only five customized models produced as prototypes for the Signature Series version. Four of these were glossy, and one was a satin matte finish.