Here are some activities and links about stuttering.
What Makes You Stutter: An Explanation for Children
What Makes You Stutter: A Basic Explanation for Children
Except fron Sometimes I Just Stutter - Information for Siblings
Sometimes I Just Stutter - Download and print book by clicking PDF format http://www.stutteringhelp.org/Default.aspx?tabid=209
A List of Famous People who Stutter
Just For Kids - A Special Page for Kids Who Stutter
ASHA Website for Kids