Sean S was kind enough to share with us a 3d printed case that he designed for the Arcade Montor Tester. The link to the design files and more pics can be found at the following link:
https://www.thingiverse.com/thing:6801254
This is just a simple frame and backing plate that snaps in place around the tester PCB and prevents it from scratching your surfaces and shorting out the battery. It fits great with the minimalist philosophy for this tester. Very nice indeed!
The link to the video tester project page is here in case you want more information on these devices.