Great LED bike helmet project from R.Stern -
Here is how to add safety LEDs to your bike helmet using conductive paint. I was always losing those lights you clip on to your bike, and they’re not cheap or good quality.
instructables : LED Bike Helmet – Link.
HOW TO – Make a LED Bike light system – Link.
HOW TO – Make a 40-LED bicycle light – Link.
HOW TO – Build a simple Luxeon LED bike headlight – Link.
Antique bike light LED mod – Link.
HOW TO – Add a LED to an old bicycle headlight… – Link.
DIY bike light – Link.