That'd be a great idea for classrooms!
I did a few years back, bought some REALLY cheap fabric ($1/yd) at Walmart and used it as wallpaper. Just used thumbtacks to put it up. Was much better than white walls.
Looking closer at the black and whites....I like the one that is on the left of the kiddie fabric. So pretty. The flowers look like wood roses. And all those swirls in there! Sort of like a pen and ink.
Ok, gotta stop, I'm drooling here.........