try acetone, but it may also leave a stain, nail polish remover may be of some help
scrub, scrub, scrub...
nail varnish remover??
Any product containing acetone or methyl-ethyl-ketone (MEK) will remove nail varnish. You want to be especially careful with clothes and fabric, so as not to damage them, so check the label carefully...
Chuck water and orange juice on it at the same time. Chuck water and orange juice on it at the same time.