i figured out a way to remove unwanted drawings off your surfboard or skimboard,(anything else fiberglass i guess). All you need is a sponge (the kind with one yellow side and one green side) and some water or windex.(i used windex) apply the water or windex to the green side of the sponge and to the board all around the unwanted drawing. Now scrub the drawing and you will automatically see the drawing start fading,now scrub it the opposite direction and repeat this till it is completley gone. It DOESNT leave scratches,marks, or anything so you dont have to worry about that.