Update: A slightly refined version of this can be found here: https://www.printables.com/model/859712-travel-dice-tower-and-storage-box
This is a more compact version of a dice box and tower based on a woodworking design I saw on Reddit. The original design and inspiration can be found here: https://www.printables.com/model/469335-integrated-dice-box-and-tower
This version removes the extra dice storage compartment and adds a door to the dice tower so the dice can be stored directly inside of it. This both increases the storage capacity and decreases the overall size of the box.
The door piece should snap into place in the tower without too much effort, and four 20x5x2mm magnets are used to keep the door shut securely. As with the original design, the lid and tower are printed separately and glued together (I used generic superglue). Depending on your print tolerances the magnets may fit snugly enough to just be held in by friction, but I used a small amount of glue to secure them in place as well.
The author marked this model as their own original creation.