This is not so surprising. The Feds have a regulation that ANYTHING that a child might conceivably put in their mouth MUST be tested and certified "Lead Free" . This necessitates the definition of "Children's Jewelry".
Our Faith Awards ( Friends Committee on Scouting) are such, and some years ago, when this regulation became more widely enforced, our entire stock of Faith Awards had to be either tested and certified by an independent lab (each piece individually !) or destroyed. We opted to order a new batch (which the manufacturer tested and certified as part of the price) and parce