The board itself is carved cake. The wheel supports and wheels are RCT and the rods are dowels. The skull and name are gumpaste. I wanted it to look used and beat up so it's been dirtied up with Wilton's brown Color Dust. The sides were supposed to be black, but as I don't have an airbrush I was stuck using the Color Mist sprays, and the black didn't work very well. Someday I will get an airbrush!