Forty-two recalls of more than 100 million pieces of lead-tainted jewelry have occurred in the past four years, including a recall in May of 103,000 High School Musical and other themed necklaces. http://www.goldpromoter.com/ some of the recalled jewelry has been sold and resold by networks of little-known agents, distributors and other middlemen before landing at U.S. retailers, which CPSC acknowledges can make the products difficult to track