Use an axe to cut some trees for firewood, then a saw or a chainsaw to cut from firewood -> wooden planks, add nails (or craft them from metal wire and pliers - improvised nails) to wooden planks, then use hammer to craft a crate that you can take in hands (empty) and place it where you want to, it would be presistant, also you can paint it on black, green, camo. small storage but you can hide it easy.