Cocinitas u hornito plegable: Pocket stove
Super folding. There are different models, and it also seems that they should be easy to copy. In essence they are not a stove or kitchen, but a support to support the pot. Here are some examples to get an idea: This one called Pocket Cooker loved it. It looks like a pyramid to which the tip was taken and two of the sides. Rarísimo the design, but it is seen that it worked. Here are photos. And more pictures along with a brilliant idea, using disposable English pudding molds as mini-collapsible pots. It never would have occurred to me, but it is brilliant to heat a little water or heat a can of Feijoada (mmm, delicious). And teach how to fold them and everything.