Bialetti 1 (small) cup espresso maker on Swiss Army Volcano stove using a gas reducer ring. Wonderful coffee experience.
The reducer ring is great as it allows the espresso maker to sit solidly on the stove and I have even used it on the stove with a frying pan and a Zebra billy. It just extends the flexibility of the stove.
Excellent picture and magnificent beard too! (You'll have to show that on the "Get your beards out for the girls" thread. I see you have the naughty habit of "Bacon Grill"! The guilty food of the gods!