Reelight bike lights.

My brother and sister in-law found these and I just had to post them. The little crescent shaped things are magnets which get attached to your spokes and cause the light to turn on with each rotation (induction power....who knew?) There is no battery, no pressure on the wheel, and no need to turn them on or off. I do wish they came in a slightly sleeker design but I can put my design fetish aside to appreciate all the little problems they do solve. They cost around $40 for a pair at various online bike shops though I have yet to see them carried anywhere in NYC.

For more info go here: http://www.reelight.com/