Building little alcohol and hobo stoves is great fun, they are often made from beer/soda cans or larger food tins. We have done several previous posts on both (us the K.W.N search facility and check them out).
The problem with the small alcohol soda can stoves is that whilst they are lightweight, they can get crushed and broken easily. They are also not strong enough to put a decent sized pot on to cook. You pretty much have the opposite problem with the larger food can hobo stoves – they are just too big and bulky for camping, hiking and bug-out-bags etc.
The pocket sized stove in the tutorial below has the best of both worlds, it is still light and pocket sized, but it is way more durable than a soda can stove and it can take larger pots.I think it is the best pocket sized camp/SHTF stove I have come across! Check out the very detailed tutorial below.