Both Will and Hannah have *loved* coloring, cutting, and taping their body parts on their personal body cut out. This book lays it all out for you. For each body part, there is a description of it's use and function and coloring page for the life size replica. I love that the body parts are layered, some using brads, so you can really get a feel for just how jam-packed our bodies are.
I picked this book up at a used book sale last year - a perfect supplement. It's out of print, but still available a few places.