I made all of these designs as fridge magnets and found they also made good coasters. I like to print them with PLA. I keep it at 25% infill for a little more rigidity, but it works at 15% just fine. I also recommend printing the colored part face down on a textured build plate so the design is textured; however, either way is fine.
Enjoy!
The author marked this model as their own original creation.