In the latest issue of Surface Magzine
, they featured this series of witty wallpaper from 5.5 Designers called "wallpaper games" as part of their bathroom products section...
There are three games, a maze ("labyrinthe"), tic-tac toe, ("morpion"), and a hidden word puzzle ("mots mêlés"). According to their site, they are highly recommended for the bathroom, waiting rooms, or any space where one might be bored. Check out more at their site