Two or three years ago I made this advent calendar for my son. It is made using 24 matchboxes.
Desructables are HERE.
The drawers are just big enough to put a chocolate in each one.
This year I needed to make another for someone else. I had no matchboxes and the snow is so bad here I wasn't about to go shopping for them. So I took a few sheets of cardstock, and made boxes.
24 sleeves and 24 drawers later, and I was able to stack them up and glue them in place.
Then i decorated it. Added a base and a top bit.
and filled it with chocs.