Keith Levy of New Zealand whipped up this neat little rocket stove out of two small cans cut and fit together inside of a larger can. He says:
I love cooking on an open flame and I love rocket stoves. That doesn’t make me a pyrothingamee, it just means I like getting back to basics. In fact if I don’t get back to basics at least once a day then it hasn’t been a good day.
I like that! So much that I made it large: