This is a solar oven I built from scraps of bamboo, rope, stones and an old sky light dome that I found leftover at a bamboo build-out at the Coachella Music Festival. It worked great, and I could cook quinoa and cookies every day!

This is a solar dehydrator made from a total $14 of materials purchased at a local materials exchange yard. It makes sun dried tomatoes and zuchini chips just great!