Artistic project with bulk cd/ dvd cases?

Couldn't decide if this was more of an art question or a craft question... but... You know the ones... the clear cylindrical cases that encase the 50 count blank cds/ dvds? I've seen a few projects here and there, but most look pretty ugly/ college dorm-ish. Guess I'm hoping for some magical suggestions for something kind of artistic? Modern art-ish? Esthetically pleasing in some way? Just plain fun? Doesn't have to be practical at all if it's interesting enough. I've got quite a pile going if it helps the juices. Any suggestions gladly accepted! Thanks!