Die Happy Hippo Company - Figur: Susi Sonnenschein - Überraschungseifigur: Amazon.de: Spielzeug
Kinder Überraschung Happy Hippo Fitness EU Satz ohne Brille : Amazon.co.uk: Toys & Games
Amazon.com: San Diego Zoo Happy Hippo Plush, 11 in Cuddly and Snuggly Hippo Stuffed Animal : Toys & Games
How to Be a Happy Hippo: Shipton, Jonathan, Percy, Sally: 9781854306135: Amazon.com: Books
Jealous Hippo: A practical way to deal with attention-seeking behaviour (PumpEQ): Ciulinaru, Liviu, Mirea, Alis, Jelić, Katarina: 9798454383961: Amazon.com: Books