SpongeBob SquarePants&reg; Bikini Bottom&reg; 12-Piece Aquarium Set w/Puffy Stickers Bring the undersea world of SpongeBob home and into your child's aquarium. Enjoy the magical world of Bikini Bottom while teaching your child about pets. Officially licensed Nickelodeon SpongeBob ornaments. Collect 'em all! Made of a durable resin that's safe for children & pets. Includes 2 sheets of SpongeBob puffy stickers.