I originally found Maid of Clay when I spotted this incredible vase. Unfortunately it's been put on hold so I peeked around the rest of the shop and found these amazingly unique pendants. The face is made from porcelain clay that has been "lightly glazed with underglazes for an antique-y look and kiln fired to 2167 degrees."  They've also been signed on the back.

The pendant on the left features vintage shirt studs that have a brown mother of pearl in the center of a gold frame. On the right has vintage watch gears. The chain measures approximately 19" long (she does offer to make different lengths) and is 14k gold filled.  The toggle clasp is plated metal.

There are currently 29 different face pendants in Felicia's shop so you're bound to find one just right for you.  There are also a number of other items including charms, sculptures, vases and more. 

At around $32 a piece, these seem like a real steal to me.  I will definitely snag one for myself.  I have my eye on The Hypnotist personally (the one on the right).