Take a bunch of solar cells. Lay them between some recycled plexiglass. Use them to repair or replace crumbling bus shelters, or shelters at stops where historically people people have had to brave the elements. Then use solar energy to small power screens in the middle that tell you when the next bus is arriving, what the local weather is like, sms messages, any videos from around the world, and emergency warnings (among many other uses as well). Developed for Current TV, 2006.