Thanks fogman!, here's some examples, the code is also available for the brave souls who want to think their way through it!:......in order (from most like what you want to least):
metaballs (800K) move vertices according to position (I recently found there's a much easier way of doing this by the way!)
Glory (3.5 MB) this one's extremely customizable! I just uploaded this new version today, the old one doesn't have the deformation editor
illumination (2 MB) deform a frog as rainbow lights swirl around it, very customizable
SuperUltraMega Picture Viewer(4.7 MB)] Deform the objects that a picture is on
Stackers (3 MB) deformations on game objects
Wing (60 MB) Tiny bit on reflected objects from water