These jewelry/smudge bowls are completely made by hand. 
They have been drawn and cut from 18g copper sheet. 
I then imprint real leaves into the backs of them and leave partial fire scale on the bottom of the bowls (and then seal them) for a touch of earthy texture.
Hammered into a large wooden dapping block and then raised on a large steel stake. 
They are then cleaned and prepped to be enameled. Enamel is a soft glass powder that is sifted and then fused onto the surface of the copper in a kiln at 1500 degrees (F). 
I have hand-drawn an image, scanned it, digitally edited and added to it and then applied it with a special technique to the surface of the enamel, after which, it is fused into the glass to last a lifetime.