Take a coffee can and cut an opening out of the bottom about 1.5x3" for feeding twigs and grass etc. into. Take a pointed bottle opener and punch holes all around the top of the can for letting smoke escape. With the addition of tinfoil over the upside down can, you can fry food directly on it. Take some tinfoil and wrap waterproof matches and dry kindling inside of it to keep dry, then stow this inside. Stash this little stove along your trapline or strategic places in your hunting grounds and you'll be happy when you need to stop and boil a pot of tea, fry some food, or just warm your hands. I have many of these stashed out there so that I can usually keep comfortable even in the winter and they could even save your life! Best of all they cost NOTHING!