MakerShed has them, but custom maker branding
they r more expensive than altoid tins with altoids.
You probably can't find empty ones. My suggestion is going to the store and emptying them out into a container so you have a bunch of tins.
You could just buy the tins, empty and clean them, and send me the altoids. also- I beat you to this name, because you stole slartibartfast.
haha i actually took that back i dont want it to reset my comments again :-P
Or here: http://www.specialtybottle.com/index.asp?PageAction=Custom&ID=33&gclid=CIeJs9mTgZ8CFRKjagodlFIuUw
Go here and see if they've got what you want. If not then google tin box container and find something there.