There's Clocky. (Clockie?) It's an alarm clock that is very hard to sleep through because the noise is not a consistent beep; it's a lot of random, annoying noises that never repeat. It also has wheels and if you set it to do so it will roll away, off whatever it is sitting on, and "hide". You have to get up and find it to turn it off. By then you are usually awake. For me the noise alone worked pretty well and I didn't have to search for it too often.