The pendants started as Canson watercolor art board (I love that stuff!). First I took some scraps of the art board and did some loose watercolor painting with Daniel Smith watercolors. Then I cut the pendant shapes including holes out of the art board, wicked some superglue into the sides to add strength, and painted back and sides with black gesso. Front and back were then coated with 2-part epoxy resin, and the hardware added.
I really like the trendy clasp-in-front-of-necklace look.
Some day when there is a Glowforge convention, @cynd11 will have the privilege to give a presentation on the main stage.
(And there are a few others here who definitely should get that privilege, but you have been one of those who introduces material and art forms that extend the range of the Glowforge.)