( note: This is a previous article from thegoodhuman.com )A little cardboard box won a solar oven contest recently and thegoodhuman.com made this solar oven for $1.50. You could probably make one with stuff in your house right now. I think I’m going to make one too. Follow thegoodhuman on twitter, I do. So, on Friday you might remember I mentioned the Kyoto Box, which just won a $75,000 prize ideas to fight global warming. Well, it looked simple enough to build, which was the point, so I built one myself in a few hours this weekend. While I picked up an old window from a friend to try to use the glass, it was just too big - so I headed to the Habitat ReStore to pick up some used plexiglass. Cost? $1.50. A few other materials I needed included:

- 2 cardboard boxes, 1 bigger than the other. The smaller one is the cooker, and the outside one acts as insulation.
- Utility knife to cut the boxes down a little bit
- Black spray paint
- Aluminum Foil
- Leftover packing materials of any kind for insulation
- Glue
- Duct टेप

That’s it. Since I already had everything except the plexiglass, the entire project only cost $1.50. But did it work? I will tell you after I show you a few pictures of the project:

I would say that is a success, considering the fact that it was only 52 degrees and very cloudy. And now it’s been snowing for days, so no more testing. Next time it’s very sunny I will attempt to do some cooking, and I will report back. I highly recommend you give this project a try, as it’s kind of fun to see something you build work so well!