Tread make gadget bags from recycled car tyres. In Columbia. That makes them a force for good all right. I may spit in annoyance at their beautiful but hugely annoying Flash web site, but I applaud their vision. Cell phone, MP3 player and camera bags, as well as laptop cases. And surprisingly enough it looks quite stylish. Variously priced (the Sportster in the pic is $29.95).