As a mother who has done Girl Scouts and Boy Scouts, I came along this neat idea to use film canisters. You can make an emergency kit for kids. Younger kids can have a Band-Aid or even several plus .50 cents for the emergency soda or popcorn. They spend their .50 cents and then have to replace it with money they earned.
Editor's Note: Film canisters have chemical residue from the film. Make sure that you keep that in mind when reusing them.
Alice