The shapes I use on my jewelry are free-form. I make them from beeswax and have them cast into metal (lost wax casting), each piece is perfectly imperfect. The "blob" (for lack of a better word!) is a 14k gold hand made bead - each one is different and this is a bit of a work in progress - that can be use as a charm, strung on leather (at approx. 24") or on navy cord (includes a 10k gold lobster clasp).