My previous Ghostbusters coaster design is basically my most downloaded creation. So here's an updated coaster in square form, and I also added the ghost trap "hazard" pattern to the background and I really like how that turned out! So in addition to filament changes at 2mm and 2.4mm, there is another change at 1.6mm.

One photo is regular color PLA, the other is silk PLA and it's oh so shiny!

Link to round Ghostbusters coaster: https://www.thingiverse.com/thing:4766446