Silver Balloon Solar Cooker

Here is another device that lets you cook food for yourself and friends using sunlight. The Silver Balloon Solar Cooker weighs under 6 ounces and can fit in your pocket. It uses the sun to warm your meals and boil water.

This solar oven inflates from pocket-size to a 2′ x 2′ x 4′ oven. It can reach temperatures up to 350F.

[where to get it]