Awesome way to use CDs for art! I think this will be an awesome project to do next year at the beginning of the year and have each student create an underwater creature out of a CD for one huge bulletin board!
Dazzling Sparkle Kids' Crafts
CD Fish- cute for rainbow fish
CD ROM Fish Craft
CD Me and one of my Foster Teens did some of these a few years back. They are fun to make then hang from strings.
13 kid-friendly crafts using recyclables
Rainbow fish craft? with recycled cd's! - Would do this double-sided and hang them from the ceiling to catch the sunlight.
De mooiste vis van de zee
Mouse Hanging Decoration Recycled CD Craft For Kids