A recreation of the Republic Credits from Star Wars: The Clone Wars. Measured out and modeled by me in TinkerCad.
Should be screen accurate to half a millimeter.
I printed a pair on my cheap printer, so most printers should handle the resolution well. Just be sure you tune the settings down, since the pieces are just a couple inches long, with features in the single millimeter range.
Edit: I realized the file had the gold ingot floating a bit, so I fixed that.
The author marked this model as their own original creation.