a Tin of paint is cheaper. Seriously, a friend of mine is an Artist, and he wanted to have a wall papered in William Morris wallpaper, but the cost was ridiculous, so he painted the wall the background colour, made some stencils, marked them all on the wall, pencilled each one,then then painted each one, with a photo stuck on the wall next to it. Didn't take as long as he thought, and it does indeed, look stunning.