MeFi has seen a GoPro camera attached to a sword, but after running across a video of one attached to a Hula Hoop (it'll make you dizzy) I decided to look for more and found a trove of sports, most of which are created by GoPro and as such may come across as advertising, but some are independently shot, so put that aside if you can. I'll probably never take up any of these activities, but I get an idea of what they're like via helmet or pole-cam. There's the Base Jump; the GoPro at 80,000 feet (near space); Boogie Boarding Surf; Surfing; Racing up Pike's Peak; Mountain Biking; a Kayak Competition; Kiteboarding; Longboarding; the 2010 Highlight Reel and many more. Damn, now I want one!
Carving the Mountains by Juan Rayos. A spring afternoon in the Madrid Mountains, with the Longboard Girls Crew swooping down the Spanish mountains. SLVimeo; 4.12.