One of the advantage of being a trained 3D professional is that it gave me the knowledge I needed to jump on 3D printing as soon as it became accessible. A challenge unique to 3D printing compared to normal 3D modelling, is that of minimizing material use/cost without compromising structural integrity or definition. I found that added engineering constraint to be extremely stimulating and enjoyable.
Here is a custom, magnetized deluxe board setup for the Eclipse board game. Eclipse is a huge game that requires a lot of table space and is covered in cubes and gribblies. The problem I had with the basic board was that all the pieces are either cardboard or light wood simply loose on cardboard tiles. Since I mostly played at a local game pub, nugding the table and messing up all that complex setup was a constant danger.
I fixed that by creating smaller, lightly magnetized and ridged hex pieces. The slightly smaller hex size greatly reduced the total space required for a complete map of 20+ hex. The light magnetization allowed the pieces to remain perfectly aligned, but with magnets weak enough that it did not move the whole map as soon as you bring a new piece nearby. The groves allowed the non-magnetized pieces to remain in place even when the table is nudged, which meant the smaller size of the hexes did not cause any problems. The ridges and teeth on the edge of the hexes are for easier, stackable storage but they also served as anchors for the new monoliths which are now colored hexagonal "crowns" that surrounded the entire hex (not pictured).
The hexagonal influence tokens also gave the game a more sci-fi aesthetic than the round wodden pills. The hole in the middle and the groves on top are the anchor for the starbase models, which were planned to be vertically stackable at the center of your hex. Sadly, I never got around to finishing the starbases, so the cardboard tokens were still in use for those.