Made those coasters for a friend.
Material and Color of the Coasters:
Bambu Lab PLA Basic Blue
Bambu Lab PLA Basic Silver
Extrudr PLA NX2 Hellfire Red
The Holder:
Amazon Basics PETG Black
"Textured Plate" for the coasters and “Engineering Plate” for the Holder.
Make sure to put the colors in the right order, or adjust the print order on the plate.
For plate 1 : Red → Blue → Silver
For plate 2 : Silver → Blue
This is essential for the thin writings and details, they won't be visible otherwise.