Give your brain a boost with the Roger Von Oech's ball of whacks. It has 30 magnetic design blocks that can be arranged to form endless designs, patterns and shapes. Each of these blocks is actually a golden ratio rhombic pyramid. Manufactured by Creative Whack Co., it comes with a 64-page instruction booklet and creativity guide with insights, stories, tips and exercises. This ball of whacks game set is a brain teaser and tests your logical thinking skills.