Fun with shadow puppets! You can do these with kids of all ages. I did them with two and three year olds. While the cognitive ability to figure out the idea of the shadow, etc, was very different, everyone still had fun doing them.
Medieval Arts Crafts: A medieval waxed tablet -- your children or students may enjoy making their very own wax tablets to bring their imaginations to life as they listen to "Men of Iron" read by Jim Weiss