I think I saw a post by Ron (VX Concepts) a while back that he was soon to go into production of 2 different types of fang x-tenders.
But, if you are still going to make your own, how about "sculpting" them out of styrofoam (surfboard blank?) ,then you could glass & paint etc. Just a thought, avoiding that pesky rot problem wood has when exposed to the elements, car washes, etc.
Good luck w/ whatever method you choose & please post pics.

Ldub