I'll admit that I'm usually a fan of light-colored neutral walls, but sometimes I think it would be fun to darken one a bit and create an ever-changeable background. I know I'd love to use it in a kid's room someday, but it would be great in an office, too--especially if combined with magnetic strips or paint. It'd be a giant bulletin board of a wall. I'm liking this thought. I need to bring my bulletin board from my old room to the apt soon.