>>2721354i made a hobo stove out of an old can by punching holes in it and fitting two halves of it together into a little puck. An australian 1 dollar coin works just as good as a 1980s penny like what Americans have to use to seal in the fuel.
It is a bit hectic to use, it shot up flames like 2 ft into the air at one point but then simmered down and I could put my cook pot on the frame over it. It lasts a good while too, you only need a bottle of metho instead of buying one of those butane cans every time and not knowing how much is left.