Standard print settings work fine. I printed mine at 100% infill to give them a little heft, but that's purely optional.
There is a worn version and a pristine version. A mix of the two gives a nice effect.
Need somewhere to store them? I designed a coin tube specifically for these:
Simple Friction Fit Tube / Coin Tube on Printables
I originally created this design this to help me visualize a prop for an artwork I was working on:
(Shameless plug of my Instagram page)
You can find the pendant here: Dragon Pendant on Printables.
The author marked this model as their own original creation.