This project shouldn't take any more than 5-10 minutes, as long as you have 1-2 matchboxes, an Altoids smalls tin, and a hot glue gun.
Step 1: Cutting the Matchbox
I used two different kinds of matchbox, only one of which I needed the rough part from. You know, the part that you strike the matches on. Anyway, use scissors to cut it off.
Step 2: Gluing Them Together
Using a hot glue gun, glue the cut-off part of the matchbox to the bottom of the tin.
Step 3: Add Matches
Now take about 6 matches and put them in the tin. Now you've got a matchbox tin! (Or would it be a match-tin?)