I didn't like other people's designs for parametric card boxes, so I made my own. The Fusion file contains the parameters, adjust as you see fit. The STL files are for a pocket-sized tarot deck. The tolerances ended up being slightly too loose on my printer, so I added some electrical tape on the inside of the outer box to tighten it up.

Printed:

• PLA
• Prusa i3 MK3S+
• 0.2 mm layer height
• 0.4 mm nozzle