Lovely Crafty Home: DIY Tub Surround Using Airstone = I know you can't use traditional tile on tub surrounds because they tend to flex and are not totally flat, meaning the grout will crack. This is interesting as a way to add interest to the front, though.
She painted the walls with primer and Benjamin Moore's Wickham Gray, then added board and batten and a tile border. She finished it off with accents of wood, wicker and bright cottage yellow. - HouseBeautiful.com