The coasters require a single color change (at 3.2mm) so multicolor capability is not required.  The print profile includes a sampling, not all of the coasters.  There are 12 unique mazes.  The STL file names identify the unique maze number and the coaster diameter.

The coasters are 75mm to fit most glasses and narrow wine bottles, and 95mm to fit just about anything else.  They stack nicely, and they also stack well with my spiral coasters  [https://makerworld.com/en/models/37717-stackable-spiral-coasters-for-glasses#profileId-36196](https://makerworld.com/en/models/37717-stackable-spiral-coasters-for-glasses#profileId-36196) and 50 state coasters [https://makerworld.com/en/models/812749-fifty-states-stacking-coasters-95mm-ams-mmu#profileId-754488](https://makerworld.com/en/models/812749-fifty-states-stacking-coasters-95mm-ams-mmu#profileId-754488).

Mazes are courtesy of [https://www.mazegenerator.net/](https://www.mazegenerator.net/) with no commercial activity allowed.  The site has information on obtaining a commercial license if you're interested.