There's just no end to the number of dangerous things people are willing to strap to their feet in the name of fun. These jumping stilts might not be as blatantly dangerous as those Russian rocket boots, but there's still a distinct possibility of leg maiming to be had here. Plus, these things are actually available for the general public to buy, not some insane Ruskie's science project. Using gravity to allow you to jump 6 feet in the air and make 9-foot strides, the jumping stilts have curved legs that will launch you at dangerous speeds in whatever direction you point yourself in. The stilts are a bit pricey at around $380, but just think of how cheap that is compared to the inevitable hospital bills. What a bargain!