So me and one of my boys decided to try and make a solar oven. The requirement this first time around is to do it with minimal store bought materials. We excelled in that since the carboard was free and the pane of glass was taken from an unused pitcure frame. The experiment contents – 1 hotdog and 1 scrambled egg in a mason jar. After 45 minutes we only achieved 150 degrees F but the hotdog was cooked while the egg was still a bit embreonic. I attribute that to using a glass jar though and not a container or can (painted balck with heat resistant paint). In our second experiment we will try again with a black container so as to suck up the heat, enjoy the pics until then.