A great site (which we feature in our video how to scout skills section) ..I bet most of the members were Cubs & Scouts when they were your age!.
You Can buy a campfire food firefork (for marshmallows & sausages) etc, OR with an adult you could try making one yourself...
Would Cubs & beavers like these for a sausage sizzle for you think?
TOP-TIP You can stop a marshmallow burning by simply dipping it for a second or two in some water just before cooking this allows the inside to heat up whilst protecting the outside a lot more ...ask a grown up if you can try it sometime with them.