I have a brand new Stanley Adventure cup. It has 2 nesting cups that fit inside. You can heat this over the fire. Great for boiling drinking water in the Bush or for a meal. These go for $35 at Cabela's so figure $20 is a fair price. I have 2 and only need one. Look up the Adventure cup on UTube to see how versatile they are. Take the nesting cups out and you have room for a small Butane cannister and your rocket stove. Fits perfectly.