This is a simple phone-ish kind of program. You can use a calculator, play a guessing game, or log something on it. I'm learning Python, so I decided to make this small project as kind of a landmark of my progress on learning Python.
For the guessing game, I suggest you make an array or tuple containing a list of animals, then use random.choice() from the random module to choose a random one out of that list. Also, write a while loop to keep running the phone after you use one of its functions, and add an option to break out of that loop.