Magnetic Parts Bins

## Note
My "updated" models with spherical magnets are garbage. I learned that in order for ball magnets to work, they need to be able to spin freely in their socket. So I need to totally rethink how to allow for that. **This means you should avoid the bins with holes on the tops.**

## Motivation
I designed this specifically to hold tokens while playing boardgames, however, it could be used to hold any small project parts.

## Dimensions
* Bins are 75mm x 75mm x 25mm
* Long bins are 1