I bought a set of wire shelves for farmer's markets, shows, etc. I wanted something that I could put in the middle of a table with opening on both sides, or with a back wall depending on where I was at. The shelves have to be light weight, and I want to be able to reconfigure them periodically. I bought https://a.co/d/0am1Hv0j from Amazon, they are inexpensive, and seem to be pretty well built for what they are.

In using these, In some cases, I have very small items to display so I wanted to be able to snap a very light weight plate into a section of the grid. Unfortunately, these are 12x12 openings and my printer won't do 12x12, best I can do is 10x10 so there is a little space around the edge. Hasn't really been an issue. This is not a “rugged” print, it's meant for what it does, nothing more.

There is a plate for an A1, which uses the full plate, and a P1s/X1C which has a cutout for the corner where you can't print.