The Masters - A Fridge Magnet Unlike Any Other

For printing, I recommend using the 3mf file or the step file. This will bring the part in with 4 components, one for each color. 

Each piece takes four 10x2mm magnets. Hold in place with a small drop of medium or thick cyanoacrylate superglue.

My examples are made with Inland PETG, but PLA should work nice as well.