Skateboarding, a sport I enjoy, originated from surfers who wanted to "surf the streets". A new sport, freebording, that some friends of mine at ISU are pioneering in the ISU Freebord Club, is allowing them to "snowboard the streets".
A Freebord is like a long skateboard with two wheels placed along the center axis inline with the two outside wheels on the front and back. The center wheels are lower than the two outside wheels, and they swivel. This and the slip-in bindings allows the the freebord to carve sideways like a snowboard on the streets. I think that this sport might actually catch on because of the possible trick variations, no cost after initial investment, and close ties with snowboarding. Here is a video that some of my friends made. They have a better video that I will post as soon as they put it up.