Solar Ovens

Here are some cool ideas for making ovens and using the sun to cook your food:

Using a tire and glass:
http://solarcooking.org/images/tirecooker.jpg

The collapsable box:
http://solarcooking.org/plans/collapsible-box.htm

To pasteurize water or milk:
http://solarcooking.org/plans/spasteur.htm

Using a shoe box:
http://www.uberpest.com/cooker.html