Behold, the Brass Cap!
I wasn't a huge fan of the removable lid design initially, but I've since changed my mind. Anyone with access to a 3d printer (ie. anyone with an internet connection these days) will be able to have some custom plates printed up should they choose. Even better if you can get parts milled. The ability to customize the plates is a great design element!
I decided to test this out with a milled brass cap that fills a lot of the cavity, attached securely via the m2.5 screws instead of magnets. This was suppose to be a test piece, but it turned out so well, I'm leaving it as it is and calling it a day. Just a little polish and possibly some sealant. Perhaps a laser etched design if I can find a pattern I can live with, but I do like a plain patina. It sure adds a nice heft to the top that keeps the spin going a bit longer.
Definitely a buy it for life grinder! And whoever gets to pick through my belongings when I shuffle off this mortal coil will have a grinder for their lives as well.