Have you seen the recent Blackberry Bold 9900 commercial? The one with the "night bike" brigade that glow in the dark? I love this commercial (krudos to Blackberry). However, it also got me thinking of what a great idea it is to invent night lighting for bicycles. It has been proven that even a simple reflector on a bicycle significantly reduces the accident rate for night time cyclists. Hence, anything that can light up like the "night bikes" effect has to be a real life saver.
In the commercial, the bikes have been sprayed with phosphorescent paint and that definitely could be an inexpensive DIY project , however, the paints have a dimming rate, and they are not going to be as bright with time (usually an initial bright burst that's short and then a longer duller period) and do not last the night. Definitely something for inventors to keep working on. Screenshot: Blackberry