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.
DIY Shadow Puppets’ Printables from The House that Lars Built. These are beyond easy to make and you can use them with Hand Shadow Puppets Poster from Etsy posted on Truebluemeandyou here and DIY Shadow Puppets’ Tutorial from Handmade Charlotte here.