Hi There!
I've prepared an Uno / Solo card storage box with optional hidden magnets and colored logo - printable with single extruder, single material printer! I've made my own print with a Prusa Mini+
You can choose from 3 models:
The box lid is being held in place by magnets. I used 5x5mm magnet rods.
If you want to print it with hidden magnets, you'll have to stop the print before the cover layer at the top of the magnets!
Here is how you can do it:
The author hasn't provided the model origin yet.