I Remodeled the Lego minifig display by Ohlookanerd so that it would fit a standard 25mm by 25mm base for a minifig.; This model should be able to interlock with other identical models if it doesn't i'll fix it.

UPDATE 1: they work but are kinda tight.

UPDATE 2: Post-processing. Friction works well, I've been using a heat gun slightly to speed up the process but it isn't necessary if you don't have one.

UPDATE 3: I made a lid it works and is lined up perfectly, so it may be a little difficult to remove when the hexagons are tiled tightly.

UPDATE 4: I have been working on creating different designs to make this a modular and upgradeable dnd mini-transport system if there is any interest from the public for that make sure to comment as such