i don't know what you would fuel and no stove but foil could be formed into a cup set into the ground with some small rocks around it for a pot rest,then the fuel go's into the foil cup to make a "stove".sand or whatever in the cup would keep the fuel from going up in a flash.just a late night thought but you get my drift.
i'm told the place to get extra heavy foil is at BBQ supply shops,the ones that cater to the hard core outdoor cooks who show up at contests.i've never looked myself but i'll bet down South,Texas and such,there must be places that sell it.