Four years ago, San Francisco-based biochemist Raven Hanna quit protein sequencing and began designing silver necklaces and earrings in the shape of molecules instead. Today she sells more than 2000 pieces a year:
neurotransmitter earrings, endorphin necklace, amino acid jewelry, serotonin cufflinks, and so forth. For details and order form, see her website, Made with Molecules:
See also interview in San Francisco Chronicle online. She could have been part of our Design4Science exhibition last spring.
(Thanks to Jessica for the tip)