Tiny alcohol stoves made out of soda cans: Zen stoves.
Well, you still have to boil
Well, you still have to boil water or something, right?
well, yeah... but I've
well, yeah... but I've already got a single-burner propane stove for that. Nice to have a plan B though!
Even though I've been known to chow on Mountain House out in the desert, I still think that rocks :-)