http://blog.spoongraphics.co.uk/tutorials/create-a-cute-vector-penguin-character-in-illustrator

Follow this step by step Adobe Illustrator tutorial to create a simple vector penguin character. We’ll be using many of Illustrator’s basic shapes to create the structure of the character, which makes this tutorial great for beginners. We’ll then make use of various gradients to really bring the character to life with depth and dimension.