What are some easy solar oven projects?

Example of easy solar oven projects include the pizza box oven, the shoe box oven and a windshield shade solar oven. An example of an intermediate or expert solar oven project includes the "Purple Fig" solar cooker designed by S. Clausson. It's touted as lightweight and collapsible.

Materials needed to make a solar oven out of a windshield shade include a windshield shade, a metal grate, a pot and plastic bag. First, unfold the windshield shade and fashion it into a funnel, collapsing the center so it resembles a satellite dish. Place it in a stable, sunny place, and seat the metal grate in the center. Next, put food items in the pot, and wrap it in the plastic bag.