I saw the raven shadow out of taxidermied raven parts a life time ago at the Guggenheim. What made it so great was I didn't realize the shadow being projected came from a variety of unrelated parts until I got pretty close to the sculpture. The fact that there's a multitude of artists that have used this technique makes me all the happier. These specific images were taken from Millzyville. Click on the artists' respective links for more.