After searching for a coaster stand with no luck on Maker World, I decided to make my own. Most coaster holders have them lay flat, but this stand will display the art on the coaster when not in use. It fits 3mm x 100mm circle style coasters perfect. 

Here, you can find the square display stand! 

[https://makerworld.com/en/models/1161936-square-coaster-display-stand#profileId-1168347](https://makerworld.com/en/models/1161936-square-coaster-display-stand#profileId-1168347)