Parametric Card Box with Sliding Lid
This is a simple parametric box to hold playing cards. The box has a sliding lid that uses friction to hold fairly tight. The shared edges of the parts are mitered. I was trying to make is look like one solid box instead of two pieces. (It wasn't completely successful, but it still holds cards.) Customizer or OpenSCAD can be used to change a number of parameters including card size, number of card stacks, wall thickness, text string, text size, text font, and text direction. The lid is held in using a wedge-shaped channel, which is configured to be half the wall thickness. This works for the test prints that I've done with a 3-mm wall thickness. It might not work for thinner walls.
There are a number of great customizable card boxes on Thingiverse. I was using this project to learn OpenSCAD. In particular, I looked at this thing to see how to generate text cutouts with OpenSCAD.