Simple print-in-place double sided coasters in three different sizes - for cups/glasses/bottles, for plates/jugs and for pots/large bowls. For best results it must be printed at 0,15 or 0,20 mm layer height. These on the photos are printed with 0,6 mm CHT nozzle, so 0,4 mm nozzle will give even better results.

For keeping them tight you can use this or this keepers

If you want to scale the model, change ONLY the X-Y dimensions.

PS: It is very relaxing when you crack it ;D