Be the master of your own party.
HandRave is a webapp that uses the Leap Motion Controller to detect swiping gestures made by your hands and play drum beats when you make those gestures. The app streams music from SoundCloud for you to jam over and flashes colors when you swipe downwards to truly emulate the rave experience.
Each gesture can be modified to play several different songs, so you won't be stuck for the same beat for every single song. Also, swiping downwards with your hand in a fist makes the sound play louder, because everybody knows that fist bumping is the realest way to bump in the club.