Gate token holders for Arkham Horror board game by Fantasy Flight Games (should also work with Eldritch Horror).
I designed these to look like they were an arcane seal which has been broken and opened the portal. On the back there is a ruined elder sign hidden in the stonework.
Suggested for resin printers only, FDM will likely have issues with the fine detailing. Supports on some of the tentacle overhangs will likely be necessary. I printed these vertically four at a time on my Anycubic Photon.
After removing supports and sanding any rough spots I primed these and then did a base coat of grey acrylic paint and then a wash with very diluted black paint to fill all the cracks in the stone. The tentacles were then painted and washed with their respective colors to test out some options.