Amulet dimensions: 124.07 x 17.55 x 124.06mm or 4.88 x 0.69 x 4.88in
Scale up or down as needed, I have printed and cast these in the current size all the way down 25.4mm/1in diamter for smaller pendants and even a ring face with no issues.
File size 250k poly
For the current size FFF/FDM prints are fine but you need to support the fangs in the snake heads minimally, like enough to support but not so much they break off. Resin printing is ideal but I have seen it done with PLA with good results...
This model is based on the 1982 film Conan the Barbarian. I've updated the design to reflect the original sketches used to create the movie piece. So it's a little different then what ended up on film... Much cleaner too.
If you need any help with the file or have any questions let me know.