Here is a cold drinks coaster with a character that resembles Homer Simpson saying "D'oh". It's made as a bit of fun. The coaster is 0.6mm thick. Note that a warm drink placed on the coaster will likely cause the coaster shape to deform!
My print is made with a group of eSUN PLA+ 1.75mm filament, Black, White Gold and Orange, with 0.2mm layer height and 15% infill on a Bambu X1 Carbon printer with an AMS. No print supports required.
I hope that you can find this design useful, too.
Remember to leave me some feedback or even a tip to keep me enthused to make more of these drawings.