These boxes can be used to store everything that comes in the character envelope for a class (and, if you use the biggest one, even the character mini). This is a remix of jgrg1's character boxes on thingiverse. I've made a few changes, mostly changing the thickness and adding a compartment for character tokens.
Lid and icon files for these boxes are also available for Jaws Of The Lion, Frosthaven, and even many community-created custom classes.
For each box you will need to print 3 models:
Glue the icon token on the box, and slide on the lid.
There's also a (class)_magbox_icon.stl file included for each class, which can be used with Xevin's “magbox” storage boxes.
The author hasn't provided the model origin yet.