A fun treat for children is dehydrating mini marshmallows. It’s a lot cheaper than buying the tiny Kraft ones (if you can even find those), in the grocery store.
Spread a bag of mini marshmallows on a couple of dehydrator trays, separating as much as you can. Some brands are stickier than others. Dry at 135°, checking after two hours. Break up clumps as needed, and rotate the trays so they are evenly dried. You want the marshmallows to be dry on the outside, and preferably dry inside. The drier they are, the longer the storage time.
Add to hot cocoa in camp, or for kids? Let them add it to their trail mix!