After I stumbled upon very nicely made PCB coasters on amazon, I was missing an appropriate holder for them. I don't know if linking to the article is allowed but you should be able to find and recognize them when you look for them.
It holds 8 coasters in total.
Modeled and designed a simple holder in Tinkercad, nothing fancy. gcode just for time estimates.
The author marked this model as their own original creation.