A group of crazy skydivers have taken their extreme hobby to the next levelÃ? by setting off fireworks as they jump out of the plane. Pyrotechnic skydiving is the latest wild craze in extreme sports. A team of four divers activate sets of fireworks strapped to their legs as they fall through the air of speeds of up to 120mph. The Fastrax team are high performance skydivers used to throwing themselves out of planes and creating shapes in the sky.