Craft "Fine" Jewelry
It's not hard to find jewelry made from computer components on the Internet. The earrings seen above came from GeekGirl Jewelry, which offers many circuit-based designs. Other creative individuals have used memory chips, keyboard keys, CPUs, power buttons, USB drives, and even miniature circuit boards.
Wearing hardware-based jewelry will likely prevent anyone from landing a hot date unless they're attending CES, Computex, or a Tom's Hardware office party.