Hippopotamus decals for cars, windows, trucks, walls, tumblers, & more in your choice of sizes & colors personalized. Apply custom vinyl hippo stickers indoors or outdoors on most smooth surfaces. Made using durable sign vinyl that lasts for years without fading. You won't find better quality. Choose from our selection of Hippopotamus Cartoon, Hippo In Water, Hippopotamus Silhouette and more.