Skateboarding x snowboarding x surfing = Freelining, a new sport invented by Ryan Farrelly that looks totally whack. Freeline skates each have two wheels which are attached to a small aluminum frame with a flat top that has grip tape on top. There are no straps—you ride it like a small skateboard under each foot. Check out these videos, which show you how to start Freelining. A box of two skates is $129 and is available online from Freeline Skates. Thanks to reader Craig G. for the tip.