This coaster was designed by me as early as November last year, when Fallout 4 was released. It is made by 3D printing and cold casting with aluminum powder, presenting a realistic metallic texture. You can take a look at it in the following video:https://www.youtube.com/watch?v=HT6rIFAqnKE

The file has been updated and is now scaled to the correct proportions, so it can be used directly for printing.
If your slicing software can't open the file normally, please download the file in "Gear" format and resize it to a diameter of 101.6 mm.