Little Hands Wallpaper Mural - The wallpaper can be ordered in various sizes. We are like tailors, the wallpaper will fit perfectly on your wall, you just have to give us the measures you need!" Focal wall in nursery?
I love this idea. I would do it, get removable wall paper. - "A neighbour of mine has one wall in their house papered like this. Every time a new guest comes in, they are asked to colour-in a character and initial it.