Ricochet and Other FUN Games with an Odd-Ball.
This book has several activities you can play with a multi-knobbed ball. Created by Chris Cavert.
Historically the ball was designed for reaction training exercises for athletes in a variety of sports. Over the years a number of group games, both cooperative and competitive, have been developed by Chris Cavert and other active r-ball players for the energetic "ricochet ball" (or the "r-ball" as the ricochet players call it). These activities are found in this book.
If you want to be a top notch Ricochet' player, you've got to get the lingo. Impress your friends and opponents as you voice your varied verbiage on the Span. What's a Span? Read on and be enlightened!