The most complex belt buckle to date! This is a "spinner buckle" The central circle part with the enamel Sonic on it is mounted on a spinner-back, like a fancy car wheel. If pushed a bit, it'll rotate a while on its own. Curled/spinning classic Sonic is the perfect choice in art for this buckle!

The edges are decorated with raised ring shapes. Sonic's eye & nose are not black enamel, they are just shiny metal. Is a rotating buckle somewhat preposterous? Only the fans can decide, but this appeared at Spencers Gifts in winter/spring 2011 and retails for about 19.99 (expensive, because it has moving parts) It is by BioWorld. 

Photo by EternalPhoenix9