The Lost Expedition Box

I designed this box for a friend that added sleeves to its "The Lost Expedition" cards.

To make room for the cards, I had to use a 1mm base for the box. It bends a little but it's solid enough for the task.

I also made an untested version for printers that can't print the whole box. I'm not sure if the jigsaw design will work for the 1mm base. If it doesn't, it should be possible to glue both parts together.