Added in 2019.
A minor annoyance we found with the first run of the party was that the Potionmaster, when going around to refill cabinets with new ingredients, had to carry around and use a bulky magic wand while also carrying a rack of test tubes. It wasn’t a huge deal, but was a possibility for optimization.
I pulled out the calipers, measured one of the larger, more powerful, magnets, and whipped up a quick ring design:
The 3D model is available on the GitHub project page.