something simple is foam rubber (like for under carpets) wrapped in cheap astroturf. you just make a sandwich of it by putting the foam in the middle and overlapping the carpet . It looks nice, and you can clean it with a garden hose later . . . . plus it adds some protection in the process that usually ends up being a couple of inches worth of cushy .
Vaulting Incognito "I saw those tubes on your truck, and I thought you were a plumber . . ."