When Cara Buono arrived at the Emmy Awards in September, nominated as best guest actress in a drama series for her role as Dr. Faye Miller in "Mad Men," she wore a $150,000 political statement in her lobes. "These earrings," she said, "are made from AK-47 gun metal." Ms. Buono's husband, Peter Thum, is a founder, with John Zapolski, of Fonderie 47, an organization that converts what is perhaps the most widely distributed assault rifle into jewelry. On a visit to Kenya... (GunPolicy.org)