If you're a deep -- and I mean deep, sleeper -- the Aphelion alarm clock is just for you. It essentially wakes you up by throwing balls in your face (that's what she said). I wonder if there is a fine print or disclaimer about possible concussions?
Of course, if you are constantly late, the Aphelion alarm clock might just be the perfect form of punishment to kick you into gear. Aside from the cannonball setting, it also features an MP3 player, radio and large time display.