Start with taking off whatever you can with acetone or nail polish remover on a cotton swab, unless its very near the symbol or paint. Then comes the part that takes a while- sunfading. Use aluminum foil to cover at least the hair if not all of the pony but the ink spot, then head it over to a window or the back dash of your car where it will get sun Check the spot daily. Depending on where you live you may not have good results in winter.