After talking with another designer were I work, he liked the skull but thought skulls are way to common and overused. So, we thought of a few things and he suggested a wheel in place of it. I thought that was a pretty good idea and replaced the skull with a spoked wheel. I've also made a number of minor changes to the bike/rider as well. I think I'm "done" now. I'm waiting to hear back from a printer on cost...
(RIP) 2004 Black Speedmaster | Scepter Exhaust | ISO Grips | Black-Hex Shifter Rod | Willie&Max Bags