I personally like the aluminum Trangia mess tin with the handle. It can carry all the basic stuff, like Doug's PSK, fire starters of several kinds, a very thin painter's drop cloth (use as an emergency poncho or to waterproof a shelter), a few batteries and a small light, a McNett survival straw, cordage, etc. Plus you can cook in it. It fits snugly inside a standard ammo pouch that holds 3-30 rd. M-16 magazines. You can wrap electrical tape around the seam between the top and bottom (it's not watertight) and wrap your duct tape around it in the opposite direction.