I'm going to offer a service to Forum members: Send me your Lesters and I will age them in my car for a week or two, I still smoke, and it's still legal in PA.

OK, seriously... you could try using a paste of crushed rock salt with a few drops of water and then clean them off real well. This is sweat on steroids. This will only works if the chrome is off or badly worn.
And a side note: Chrome is clear. The silver color is the nickle plate ( sometimes zinc) under the chrome.