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.
Step 2: I Have a Giant Altoids Tin. What Do?
-adhesive medical strips
-pen, Fisher Space
-small Leatherman knock-off
-ChapStick (or in this case Ch/ick)
-crushed red pepper packet
3 regular-sized Altoids tins. Need ideas? https://www.instructables.com/id/Ideas-for-Altoids-and-other-tins/ That's right, three. Read 'em and weep.