Free: Contests & Raffles.
river boat to help it slide over the bottom a little better
Lots of guys are having 1/4" of truck bed liner sprayed on them. Rhino, or Arma, or etc. The hot applied liner materials can be finished slick. They're tough as heck, bond hard, and the finish is smooth as glass. Probably run a few hundred. Second hand information, but I've heard good things.