Front and rear lights are essential for night rides (unless you enjoy getting hit by cars) but they do very little to warn cross-traffic of your presence. The Mini Monkey Light not only makes you more visible, it's likely stop traffic outright.
The Mini Monkey light employs 10 super-bright, full-color LED's that attach to the spokes, displaying one of 15 programmed themes as the wheel spins—anything from fireballs and skulls to hearts and space invaders. The light's power source mounts on the hub and draws enough juice from three AA batteries to run for up to 40 hours. The light fits any wheel up to 20 inches, is completely waterproof, and includes a steel security strap to keep happy-fingered thieves from making off with it.
The Mini Monkey Kickstarter proposal has already been approved and will fund at the end of October. The first sets of lights are expected to be delivered within three months of that time. A $50 (£32) donation will net you one light. [Kickstarter via The Awesomer]