CyBear shows an easy way to create and animate cartoony eyes in Cinema 4D. Actually, this is a great lesson in using the Pose Morph Tag in C4D along side the Spline Shader.
This is a great walkthrough showing how to create a spline shader driven material that is affected by pose morphs in Cinema 4d. It is being used for cartoon eyes here, but really it’s a valuable technique that can be used in many cases.