Originally Posted by Needles

Clean off any varnish with Berryman's B12 carb cleaner. Get it at any car parts store ore Wally World. Careful--- it'll strip paint. Scrub it lightly with baking soda, and rinse it well--- wear gloves to keep the oil from your skin off it. Then, swab it with vinegar& salt or ammonia & salt. Wrap it in paper towels soaked with either solution and put it in a tupperware container for a few days.