Don't try this at home, but when my mother and her two brothers were children they use to "like to" chew the heads off the lead soldiers that they were playing with. Don't ask me why they enjoyed doing this but I don't expect that they were the only children to "chew lead soldiers". One can imagine the reaction that one would get today if one attempted to market a child's toy made out of lead.
That and dumping the mercury out of those '50's and '60's toys and letting it run around in your hands...