I've had wallpaper on my mind ever since Chasing Paper licensed one of my designs for their self-adhesive, removable wallpaper collection (read about that here). I tried out one of the sample pieces on this TV tray. I might stick a chunk on the back of my iPad, too.
It's fun to think about ways to add wallpaper to a home without the cost of doing a wall or an entire room. The panels at Chasing Paper are 2 ft. x 4 ft., so perfect for smaller projects like these: