Word World Cake

An interesting theme requested from my colleague for her beloved nephew. I didn't even know of such an educational program till she showed me pictures of this theme - Word World.The animals were made of wordings joined together. Can you figure out what is this animal?Altogether, she requested a dog, a pig and a duck. Really having fun making out the animals using words. Even my little darling girl was happily telling me all the names of the animals molded here.