Curious to know who would wear this cap. The LED Cap is fully programmable, scrolls up to four messages, stores up to 6 messages, and is powered by a battery. You can choose the LED color (available in red, blue, white, green, yellow and pink) but only comes in a white cap. I think I would rather own the Car Number Plate Message display instead, this way you can eliminate bumper stickers all together while you entertain the driver behind you. Product Page [Via Red Ferret]