Square coaster with rounded corners that stack on top of each other. There are two holders for the coasters, one that will hold 4 coasters and one that will hold 8 coasters.
The coasters will need to be printed with supports around the outer edge, turning on Support on build plate only is sufficient. The holder does not require any supports.
I suggest printing the holder at 0.15 mm layer height.
All other defaults should be fine or tweak as needed.
You can adjust the top fill pattern to give each coaster a bit more style, embed your own text, or an SVG file / logo. In the examples photos I did a layer height color change.
The author marked this model as their own original creation.