My boyfriend has an ocean-like aquarium theme that he has had since he was a little boy. He is now 18 years old and still has his room decorated in the ocean/aquatic theme because it still looks mature and not too cutesy . it has sparked his interest in the ocean because he has been "around it his whole life"
I know that old navy had cute baby clothes that wasn't too cute, maybe they also have stuff to use the room, like blankets, and maybe furnishings. I'm not sure who else would.