Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3165400.
I have some 32mm neodymium disc magnets (Amazon: http://a.co/d/3Qbnjnb ) that I use to hold things flat in the bed of my laser printer. These work great, but the magnets are so strong that it is challenging to find a safe way to store them. If they stick to each other, it is extremely difficult to get them apart.
So I wanted a container that would hold the magnets a safe distance apart, allowing easy removal and avoiding pinched fingers. I ended up making this two-piece design. It holds 6 magnets, and if it seems large for so few magnets, it's because the magnets have to be REALLY far apart or you won't be able to get them out of the container.
Pro tips: When inserting or removing magnets, open the holder up just enough to expose one magnet/slot This prevents the another magnet from hopping out and sticking to the magnet you are trying to insert (and possibly pinching your finger).
If a magnet is hard to insert, flip it over. The other magnets in the container will either repel or attract the magnet you are inserting depending on the orientation of its poles.
Place one magnet outside the container, on the closed end, and it will provide just enough force to stop the holder from opening accidentally (assuming you have magnets inside the holder).