The Giant Altoids tin. 10 ounces of Altoids. That's 5.681818181818182 regular tins worth of mints. I can't even FATHOM that. This Altoids tin is so big, it can fit other Altoids tins inside.
Observe, the nesting Russian Altoids tins. (Ok, so the third one isn't an Altoids tin. So sue me.)
Step 1: I Heard You Leik Altoids Survival Kits.