March Laumer gives names to Polychrome's nineteen sisters in his Oz books. He calls them: Alouette, Aquarelle, Arcenciel, Arcobaleno, Aurora, Curcubeu, Farvespil, Iris, Lucy, Naiad, Opal, Pluvia, Prism, Raduga, Regenvlaag, Roong, Sateenkaari, Tien Kang, and Vattenande. ("Raduga" is "rainbow" in Russian, while "regenvlaag" is "gust of rain" in Dutch.)