I've not tried, but I'd like to try some adaptation of scafool's method. If I had the pot like he had, then I think I'd use it to boil water, but his experiment was a great idea.

If you had anything like a terra cotta pot, a ceramic flower pot, a few coat hangers for a frame (maybe with some wire) or whatever that would not hold water, it still might provide enough support for the foil to make it so the two together could have enough support and hold water so that it would boil.

No way I am going to try this over the next few weeks, because we are finishing the house and moving.