My fiance and I just recently bought a natural wood dining room set. Upon decorating we purchased a nice center piece for the table. We used the green tissue paper that it came with to cover the bottom of the center piece. Anyway you can imagine 2 days later we moved the center piece and the tissue paper to find a green blotch dead center and embedded on the table. What can i possibly use (besides tablecloths) to remove this nasty mark?