Designed by me on Tinkercad. Printable models of the Dungeons and Dragons as illustrated in the DnD 5e Player's Handbook. I recommend using filament a similar color to the coin to make it easier to paint if you want them to look metallic.
Use metallic filament colors like gold and silver to get nice finishes.
Also, to get a more realistic coin feel, use different amounts of infill to make each coin feel as if it were made of different metals.
Optional: Glue both sides
Originally, I made two sides to each coin to be printed and then glued together to be one coin. However, the resulting prints looked really good by themselves as individual halves so I decided post-print to not glue them. If you think you'll want to glue them, I suggest reducing the height of the coins so that the single coin isn't overly thick.