Mushroom Shelves with 12X3 Magnet Holes

I liked the idea of using these mushroom shelves to use as fridge magnets, but I prefer to use 12x3mm magnets, so I modeled some. I used the origional models as a starting point, repaired, reoriented them, then added the holes. The holes are are modeled with .1 mm clearance. I've modeled and included a simple knob style magnet you can use to test fitup. If it doesn't fit; scale up the models 1-3% and try again. A drop of super glue is used to join magnets to the pockets.