Bleach, witch hazel
Ah, kids -- as my father used to say, "can't live with 'em, can't kill 'em!" there's no end to the mischief they can get into.
No personal experience, but i'm told that rubbing the stains gently with witch hazel
, or a dilute solution of bleach (25% in water) will do the trick. And next easter, try to persuade your kids to use spoons to dip the eggs, not their fingers!