These were donated for a Child's Play auction.
To get the effect, start with an opaque blank insert (I find black works best). Have at hand a disposable spoon and a smal, sealable container with some dish soap and water you can agitate to make tons of bubbles.
Using an aplicator (I use a flat silicone brush), apply a very thin layer of UV resin. Use the spoon to scoop the soap bubbles onto the resin-coated surface. Quickly put it under a UV light to cure the resin. I clean any overspill with a craft blade to keep it neat.
Once all facets are done, brush the mica powder of your choice onto all the surfaces and cast in clear resin.
Thank you for sharing these and describing the technique. I’m looking forward to trying it when I get my shell molds made. These look fantastic and dragon scale is a great name for the look.