http://www.youtube.com/watch?v=VT9i99D_9gI
a bunch of pairs of celeb faces (some of them old, sure, but that's the trick here) kinda freaky what happens with your peripheral vision and how your brain "fills in" details if you simple stare at the cross in the middle of the video (do not fullscreen, the effect is better with normal dimensions). For a brief moment it looks like they have been stretched and warped via "Goo" or similar (like this kind of thing: http://www.onickz.com/morph/index.html ) , but if you then look directly AT the face (instead of just peripheral) they look "normal" again.
science explained here: "Flashed Face Distortion Effect"
http://mbthompson.com/research/
the ORIGINAL (non-celebrity version) http://www.youtube.com/watch?v=wM6lGNhPujE is way more obvious in its effect, the faces are truly normal/beautiful, but you will immediately see some pretty damn scary morphs, Nightmare Fuel almost!