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 Kids space reading nook~ Rain Gutter Kid’s Bookshelves This could be the best 're-purposing' project I have seen so far.what a great idea and the books, or whatever, would not fall off the 'shelves'.