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.
In their vignette, Pulp Design Studios opted to use the Seagram Wall-Hung Toilet as a gallery piece, creating a segregated space using partitions reminiscent of Palm Springs concrete blocks. Chandelier by Lamps Plus