FISH OUT OF WATER!
To turn your tub into a deep sea adventure, just get these appliqués wet, slap them on and pull them down when you want to change the scene. And no need to fear mould or mildew. These don't absorb water, so they won't get black and gunky.
Rinse thoroughly after each use and place in a location where it can dry completely. Clean with a mild detergent if needed.