If you have one of these, Schematic Symbol Reference Guide PCB Coaster, and you want to have it sit off the work surface a bit, then you could print the item I've designed here.

I intentionally added a lip around the perimeter so I could use a large, earthenware mug with the coaster and not have to worry about scratching. I make edge cases a way of life.

By the way, this coaster is very functional as it's a really handy reference for various electronic schematic symbols.

Note: I'm not paid to say any of this and I don't know the person or persons who make it, in fact I paid full price for my coaster and use it on the regular.

Print instructions

This one is real easy, but I'm going to let you guess what is the best orientation (wink, wink, nod, nod).