From local author Roger von Oech, the innovative X-Ball presents a playful new way to stimulate creativity.  30 magnetic X-shaped pieces click together to form a skeletal icosidodecahedron — Leonardo da Vinci's favorite shape. The uniquely angled geometry of the X-shaped pieces allows users to invent their own shapes and designs. Included is an illustrated 96 page creativity guidebook.  Bonus: X-Ball pieces can also be used with the Ball of Whacks pieces. For ages 8 and up. Available in red.

$29.95