I could make a stove if I had to, but decided to buy one. We have power outages which make cooking an immediate problem. Until recently we owned a camper with a two-burner propane stove and a refrigerator. We sold it.
Now the rocket stove will be called upon sooner rather than later if we are without power.
http://stovetecstore.net/
The post by me in 2012 was before I bought a rocket stove - now, I have one as the ultimate in having a stove. There will always be twigs around to use for fuel.