I have been considering writing an article about home-made solid "Nesbit" fuel stoves, but frankly there isn't a lot to say. The fuel just burns, so all you need is a slightly raised platform to put the fuel on, and another above it to put the pan on, and perhaps a windshield. Bent tin will do. They are even lighter than the pop-can stoves, and if you make it yourself you can design it to fit a PSK/Comfort pack so that it takes almost no room.