[NightKnight]

I have heard people talk about Plastidip before, but I stumbled across a thread on a car forum where a guy used it to coat some wheels. It looks really good! Might be a nice coating for the barrel of a blowgun!

http://www.optimaforums.com/forum/8-optima-wheels-tires-suspension/10499-plastidip-rims-matte-black-metalizer.html

 

[superman365]

or http://www.camodipkit.com/

 

[Raptor]

You could maybe try flexseal in a spray can. Or spray on truck bed liner in a can.. it would also give you a textured look too.. just a idea?

 

[NightKnight]

Yeah, the truck bed liner spray would provide a nice grip!