What are they? They're crackled glass marbles that have been encapsulated in a little cage of chainmaille. At the moment, they can ONLY be done in a silver cage, as I only carry silver in those sizes.
Those are the three current colours of marbles I have - cobalt blue, clear, and fire swirl (clear with orange and white twists).
What makes these so cool? The glass of the marbles has been heat treated so that the inside of them has fractured and created a stunning crackled look, while leaving the outside of the marble smooth and complete.
I'll be uploading close ups of these next!
As to the name? Bah, they look like Holocrons to me, and I'm a Star Wars geek, so I just can't help it. XD