I picked up a couple of these little machined Al capsules at REI the other night. I thought it would make a nice little match safe to put on my keychain. It's spec'd at 5/8" dia. and 1-7/8" len., but the interior dimensions are about 1/4" too short to fit Swan Vestas. Bison makes a longer version (2-3/4" len.) that I think will fit 6 or 7 Swan Vestas and a bit of tinder nicely.

I found a web site that sells them for Geocaching at the same price that Bison sells them direct ($4), but without shipping charges (on orders over $10). Sissy-n-CR's Treasure Hunting Page

I ordered four of them, and I can't wait for them to get here!