Funny you should ask. He's been making these amazing stoves. They weigh less than an ounce and will burn for almost 8 minutes on just a tiny bit of fuel (used for demonstration...they'll actually burn for a long time with more fuel) He's boiled water in his camp teakettle on one of these stoves. They're awesome for hiking because they weigh nothing! Anyway, I just wanted to brag a bit and show you what he was up to.
A pic of it burning. Looks just like a gas burner on a stove. He's been having a great time hanging out in his basement workshop making these. There are can carcasses (carci?) everywhere.