mood ring

"Love Tester" mood rings and necklaces sold over the past five years are being recalled after testing showed they contain high levels of lead, the U.S. Consumer Product Safety Commission said. About 23,000 were sold for about $4 across the country at small retail stores. They were imported from...

The mood ring may be far out, man, but it has a practical, medical history. The ring was conceived in the 1960s, when Marvin Wernick went to an emergency call with a doctor friend, and watched him use a thermotropic strip to take a child's temperature. Aha! He thought. Jewelry!Strange but true....