Here is a gorgeous marble glass by Ethan Lesch made of borosilicate glass and fumed with 24K gold & 99.99% silver. It looks gorgeous on its own but you can use it with a marblescope to view amazing patterns.
These are handmade and unique. You can find them on eBay.
[HT]
Disclaimer: *Our articles may contain affiliate links. Please read our disclaimer on how we fund this site. As an Amazon Associate, we earn from qualifying purchases.