Coaster with leather (or whatever you want) inlay. The space for the cup is about 8 cm.
I add the .svg file to cut an inlay of your choice with your plotter.
Printed in PETG with 0.2 mm layer hight and enable ironing for only the very top layer. I glued the leather to the coaster with double-sided tape.
The author hasn't provided the model origin yet.