[CES 2010] TuneBug has come up with some rather interesting speakers, and you can check them out at CES. The TuneBug Shake functions like a “sound generator”, and can be attached to devices, such as your helmet, and will pass vibrations through the surface, effectively turning your helmet into a speaker, allowing you to listen to music while you’re biking (however dangerous it may be). The TuneBug Vibe functions in a similar manner, but is designed to be attached to a flat surface to generate sound. In case you’re thinking of getting these, the Shake is going for $119.95, while the Vibe is going for $69.99.