Littlest Pet Shop Pets On The Go Figure Seahorse in Aquarium by Hasbro. $12.77. Yes, this hard-to-find Littllest Pet Shop item is in stock and ready to ship!. Welcome a new friend into your very own LITTLEST PET SHOP, where all your pet-lovin' dreams come true! This colorful little seahorse comes with her own "food" and an aquarium to call her own!