Printables
Blank Round OpenScad Fridge Magnet
https://www.printables.com/model/2106...

Github
https://gist.github.com/patmandenver/...

SVG File
https://www.svgrepo.com/show/19622/3d...

OpenScad
https://openscad.org/

Affiliate Link
Neodymium Magnet
https://www.amazon.com/gp/product/B01...