Ball of Whacks: Six-Color: A Creativity Tool for Innovators, Artist, Engineers, Writers, Designers, and You [With 30 Pyramid Magnetic Building BlocksW
More fun than a brainteaser, more versatile than a puzzle, and an ideal tool to stimulate innovators, artists, engineers, writers, and students, the ´´Ball of Whacks´´ comes with an illustrated 96-page booklet that provides exercises for creative brainstorming and problem-solving.