Hokey Spokes and Spinvertising

Hokey Spokes are transparent "blades" that attach to your bicycle spokes. As these blades spin during riding, a computer inside the blades modulates the internal LED lights so that design images and custom text appear. It work's just like the "wag the ad" device and the advertising fan. Now you can make good use of all this space on rickshaw and taxi wheels.
-- found through i4u
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