First off, I'm calling this an animation test, but it really has no stop-motion animation whatsoever. The main character doesn't even move. But there's a reason: This is an effects test. In particular, to test out making smoke as well as animating a lego flag.
The lego flag is a 3d model, and the smoke is an animated particle system. Both were done using only free programs, which means that if you lazy chaps actually set your minds to it, you could do this too!
Anywho, here are the links:
(For instant gratification)
WMV download link
(For not quite so instant, but higher quality gratification)