How great is this wallpaper? Once it's up, you or your child, or your entire family, can create art for the frames. I love the idea of painting or drawing directly on the wallpaper, but I'm sure you could also tape or glue onto the wallpaper if you weren't sure you wanted it to be so permanent. It could be a fun way to showcase children's school work. Or an fun alternative to a bulletin board in an office or studio.
It sort of reminds me of this Sharpie-decorated basement that you may already have seen. I seem to recall also seeing some clever Sharpie-decorated kitchen cabinets someplace recently.
I think that, personally, I'd feel more confident of my own drawing abilities than my ability to hang wall paper, so I'd probably be inclined to draw frames directly on the wall than to purchase the wallpaper. (But then, I've never wallpapered while I've certainly drawn on walls.)
You can purchase the wallpaper here. What would you do with it?