This guy would be a great gift to...
The molecule form of everyone's favorite stimulant is cast in sterling silver and can be worn proudly from one's neck or ears in sterling silver.
Sterling silver earrings in the shape of the dopamine molecule
Sterling silver earrings in the shape of the estrogen molecule
Earrings in the form of the serotonin molecule, cast in sterling silver
Earrings made from green resistors.
Earrings in the shape of the "chocolate" molecule.