Bright Bike kits are the brainchild of Michael Mandiberg.  They are simple DIY kits for making your bike much more visible to cars at night.  Just look at the video on the Bright Bike website for a better idea of exactly how dramatic the difference is between a bike with the kit, and without.  Whats included for the $15?  From their website:

After a year of testing, we are releasing DIY Kits for an updated version of the Bright Bike. The kits come in two types: Caterpillar and Pinstripes.  The Caterpillar has 1 inch bands that wrap around the main tubes, and in inch dashed lines along the fork and seat stays. The Pinstripe has 1/4 inch strips that run along the outside faces of all tubes.  Each kit is sized to be large enough for a 61cm frame with extra wide tubing, so in nearly every case, you will have extra materials that will give you room to play and experiment.

Seems like the perfect stocking stuffer.

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