>I did something a long time ago with 2 pieces of paper, it was a
symmetrical >design/picture, but each half was the the opposite color of the other
If you do this with your students, it might be a good chance to look at some
Native American ribbon /satin applique work with contrasting colors with
satin or wide ribbon, usually on shawls or on the hems of skirts. Osage is a
good place to start.