Along side the 3 other million USB powered gadgets that we see kicking around the internet, you now have the option of a Tube Clock.
The Tube Clock is powered by USB and can connect to any standard USB port on the side of a laptop or PC to draw power from. Time is displayed in the regular hours, minutes, seconds. A USB booster is needed and supplied with this clock although it isn't too clear what it is needed for. It just seems like the power needed by this clock might be greater then that available and hence, a boost is needed.
The clock measures 10.5 x 28 x 7.5cm and costs $70.
Via: Everything USB