USB Dancing Robot for your pleasure
Link : Via AVING 
You can have your own dancing robot to tirelessly bust a move for your pleasure. Solid Alliance presented its USB controlled 7-inch robot ‘USB Dancing Robot’ that will start swaying and flashing LEDs to the beat, after detecting whatever tune you have playing.Meanwhile, its USB controlled RC car and garage from Solid Alliance are also presented. You can control the car by using your pc’s arrow keys, and charge it via the garage connecting to USB port.
Suggested price is 2,980(JPY) for the robot and 3,480(JPY) for the car.
