Inserts to add magnets to Games Workshop miniature bases (Warhammer Quest)

Since Games Workshop miniatures tend to be spindly and fragile these days, I wanted to add magnets to the bottoms and sheet metal to storage boxes to keep the miniatures safe. These inserts work around the various features underneath the bases (like support post holes) and fit snugly though still need to be glued into place.

I designed the bases with 3x3mm magnets in mind though 3x2mm magnets might work even better (the inserts are slightly less than 3mm thick. These bases cover all the sizes included in Warhammer Quest: Darkwater

OpenSCAD design files included in case you want to use different magnets or the support locations move in the future.