My son made a small wood srove out of a flour sifter. It worked fairley well. I have seen them made out of the small size coffe can as well. Son used a snow peak single wall Titanium cup ontop of his. I have a tin cup made of aluminum but use as a second small cookpot if needed,or for cold drinks only. Tin cups are brutal on the lips with hot coffee in them. I use a small isulated plastic cup for that.