By making a simple solar over out of a pizza box, some tin foil, plastic wrap and black paper you can capture enough of the suns heat to make smores or mini pizzas.  It does take a while though so be sure to start early.  My daughter did this at a camp a two years ago and I thought it was one of the more unusual ways to make smores I’ve seen.   Depending on the age and experience of the girls making the oven, you may want a Guider to do the step involving the box cutter. I’d allow one pizza box per patrol.

There are a number of sites around the internet with instructions but I thought this Youtube video did a nice job.