Decided to make this for myself a while ago, and making it public for others to use! This is a wall mount that I designed for PSA and One Touch 35 pt holders. These are designed to be used with 4x 5x3mm magnets. For the wall mount itself, the print should be paused after the final layer before the upper portion is added. The backing plate is split into 2 options. One is the same where the print will need to be paused, and the other is with a separate plate. I have tried to add small gaps, but you may need to sand edges down to get everything to fit based on your specific printer.

Additionally, there are the arms as well. Included here are the arms for PSA slabs and One Touch 35 pt. It should be possible to take these and make modifications to make them usable with BGS, CGC, and other slabs.

Finally, to attach these to the wall, I use the 3M Command Strips, 1 lb (450 g) small strips. I was able to purchase these from a local hobby store, but they should be able to be purchased from any online marketplace like Amazon, Michaels, eBay, etc.