This is a great project for all ages and abilities. The students started with a 5" or 6" square of black construction paper, drew shapes (white pencil crayon), cut out all the pieces, glued down the remainder of the original square, and then flipped over the cut out pieces ending up with a mirror image. There's a great you tube video that demonstrates the process well:
http://www.youtube.com/watch?v=--IFiH6zH68. These are just a few of the pieces finished early. I'm having students do one in black and white and their second one using multiple colors.