Metamorphosis, transformation, evolution or rapid aging. Shape-shifting is broad concept that is seeing a lot of play currently with characters like the Incredible Hulk or TV beasties on Grimm.
Could be a CG to CG change, Photographed plate to CG change or any combination therein.
The Challenge can be a Dr. Jekyll to Mr. Hyde, pupa to butterfly, vampires or werewolves, a robot mode shift, or anything you mind can envision. Be creative!!! A great concept will be as important as the execution of that concept.
Pick a concept and document your process. This is an educational endeavor, so share thought process, artistic hurdles, and what lessons you learned during this experience.
The Goal; Create a character or object that changes in a rapid progression. Any 3d and 2d packages are allowed. If you plan it out right, you can even morph two different photographed plates together (emphasis on expert digital compositing).