Now this was a fun little project.  It was a collaboration with another artist, lots of back and forth and bouncing of ideas to get everything just right.

Idea:
Ammonite fossils are little aquatic creatures, and their shells could capture many different deposited minerals to have very reflective effects.  The challenge here was to bring that effect to resin.  At the same time, there should be versions to match different keysets, like GMK Nautilus, MaxKey Miami Nights, and Signature Plastic's Godspeed set.  The texture was intended to replicate sandstone, so it gives another dimension to the sculpt.

Colorways:

Color matching: