I guess I really didn't give this much thought, but an article on MSNBC.com mentions chess sets as being tested for safety reasons. I imagine most all chess sets are made in China these days. How many kids are playing chess with potentially dangerous chess sets?
...product testers [at an international product testing company] who normally would check tools or candles are working on chess sets and plastic cars.
To check for lead, lab workers use a razor blade to scrape off paint from the toy's painted surface. They need .1 grams of paint to test, which can be a challenge when dealing with something like dice which has only painted dots, or a chess set with lots of nooks and crannies.