Popcorn: Combine 1 tablespoon vegetable oil and 1/4 cup popcorn kernels in a disposable pie pan. Seal the pan in foil, making a dome shape on top. (Use 2 sheets of foil, if needed, to cover). Grill immediately after the fire has died, shaking regularly with tongs, for about 5 minutes, until most of the kernels have popped.
Bananas Foster: Remove one side of the peel of a banana and scoop out a little to make a "boat." Sprinkle with a cinnamon sugar and spread crunchy peanut butter inside. Drizzle some honey on top and sprinkle on some crunchy bacon. Wrap tightly in foil and place on the grill once the fire has died. Cook until warmed through, 3 to 5 minutes.
Campfire Cone: Take a small sugar cone and add milk chocolate chips, finely chopped toasted pecan halves and a sprinkling of large, flaked sea salt. Seal by pushing marshmallows into the top of the cone. Wrap the cone in foil and place on top of grill as the coals are dying to melt and heat all the ingredients, about 3 minutes.