I'd assume that he just rounded the edges off, and then covered it with something (leather?). You can see this here:Impressive sir!
How'd you make the hand mold?
what sort of rubber?
Spray on stone guard / bed liner?
You've given me ideas now... I should stop entering this part of the forum.
It does get time consuming and/or expensive quickly, doesn't it?
I can't believe that wheel is MDF, it looks incredible. You should see how I've liberally applied MDF to my own rig. Function over form, that's what I always say...