OilBoarding

Take skimboarding "rink" - already halfbaked in prior entries. Use oil (or maybe that lovely silicone lube) instead of water. (Solves some friction and density problems.) We're obviously going to need the palms of our glove and soles of our suits to have grippy textured surfaces, for additional steering, stopping, and not-dying purposes. Then, to make it even more fun and injury-prone, why not make it a sport? Two teams, three players each, throw a flat puck that can also be thrown like a frisbee into the mix, and watch the bones break ;-)