A whimsical cartoon unicorn with green hair and round glasses holds a pointer stick aloft against a black background covered in mathematical equations, geometric shapes, and scientific symbols rendered in white chalk-like lines. The composition merges playful character illustration with academic visual language, creating a humorous statement about proving the impossible through rigorous logic. Water-resistant polyester, hookless and cut extra long to fit any bath, machine washable and made to order. It turns the bathroom wall into the room's best feature.