Inventor turns cardboard boxes into eco-friendly oven - CNN.com
I thought this was kinda cool:
(CNN) — When Jon Bohmer sat down with his two little girls for a simple project they could work on together, he didn’t realize they’d hit upon a solution to one of the world’s biggest problems for just $5: A solar-powered oven.
[From Inventor turns cardboard boxes into eco-friendly oven - CNN.com]