i've never held one, but i've always just assumed it was molded res-c.
same here, but this sounds like a better explination for around the campfire.
I believe they are normal Rec-C handles that are heated up until soft then coated with fish paste and given to the Scrapyard Dog to chew on creating the grip pattern....but I may be wrong !!! <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />