This is a fabulous cake, Shirley! What a brilliant design for a gradulation cake, so original! If it happens again, you can use a Q-tip moistened with alcohol or clear extract to “erase” the color from the fondant. If it is a lot, you may have to dab it a few times and even get a clean Q-tip, but it will come perfectly clean. I do it all the time with my models.
Sugar Sugar by SSmiley