Is it possible to get rid of the nasty black stains left on the bridge from a 'tourte' mute ? Just wondering...

a little dab of alcohol (festive vodka will be fine) on a cloth will do the trick, but be very very very careful not to get it anywhere near the varnish.........

Thank you (having worrying visions involving large bottles, my viola, and... well, you probably don't want to know! )