A skilled CG modeler and rigger could create a character that can stretch an ear to arms length, but I know I can't. There are some animation tricks that just work better in clay animation, and this sort of squash and stretch is one of them. After completing the short Make a Face, I created this tutorial to explore the effect.
The second short, Make a Friend, went online last week. From that one, what would you like to see examined in a video tutorial?