All they need to do is bury a law change for the EPA in the next mega bill that gets sent to the president, just like all the new taxes in the health care bill. Let's say, one half of page 21,501 in a 27,000 page bill says that the sale, manufacture or possession of all lead products is banned. Then they "find" this little nugget 6 months to a year after passage of the bill. Then what? The damage is done and it will take another 18+ months to remove that piece of tripe, if it can be removed. After all, who wants to be known as the senator that removed a law that protected the children from the dangers of lead poisoning? Remember, the "Assault Weapons Ban" only went away because nobody made a move to make it permanent. If the Senate and Congress had to create legislation to make it go away we would still have it, not enough of them would have had the backbone to get rid of it.
