I didn't see this on printables, and it's one of my favorite model sets for one of my favorite board games.
All credit goes to Dakanzla (Thingiverse) for the design. I've been disappointed with thingiverse lately, so I thought I would get these over to a better platform before they become inaccessible.
This set uses the diametrically aligned 3mmx6mm magnets, not the 4mmx6mm.
I also have magnetic containers for player pieces here: https://www.printables.com/model/588101-catan-player-pieces-hex-container-magnetic
The user re-uploaded this model. The user is not the original author of the model.