I had a friend, actually my first wife's first husband, who used to ship country wide, though not internationally. He bought a hand crank caning machine. This was probably 30 years ago. He used two size cans. The cans were the sizes of tomato cans. He'd buy empties (and their tops) by the case. You as the recipient, of course, had to use a can opener to get to the good stuff inside. Looked like any can you'd see in a store, just without a label or other identifying marks, naked as a jaybird. He'd wash the cans before shipping, and there was no way in hell a dog or any other critter was going to be able to sniff through that tin can.