Welcome to the forum Sound Idea.
To take this thread in a slightly different direction, what does everyone use Altoids tins for? I sometimes carry PJ cotton balls in them, but lately I have been using film canisters.
The main thing I use my altoids tins for is to make portable knife sharpeners. Basically, I glue a piece of mouse pad to the lid and then have different grit sandpaper (220,400,600,800,1500) inside the tin that I can attach to the top and touch up a knife in the field. I also keep a BSA Hotspark and a Victorinox Classic SD inside the tin, since you can never have too many of either of those. I have one kit in my car survival kit, one in my PSK and one that I keep in my external frame backpack that I use for backpacking. Very handy little kit, I just wish I could take credit for coming up with it.