Every month GreyscaleGorilla.com, a learning resource for everything Cinema 4D, holds a competition that requires the making of a 5 second animated video based on the theme of the month. The only rules are you must use animation techniques and it must be 5 seconds. These are some of my creations using a mix of Cinema 4D and After Effects.
The following themes are: Buttons, Olympics, and Bah! Humbug