Here’s a tutorial by Mark Jurey on how to make a homemade backpacking and camping stove. From the site, “The low-pressure Penny Stove is so simple that you can build a rough one on the trail with a pocket full service knife – no insulation, rulers, epoxy, needles, or tape. If you have played with homebuilt stoves before, this one should be a snap. Some have built the burner in just 10 minutes.” Link.
Penny alcohol backpacking stove