I love optical illusions, and this guy is a master. He has lots of videos on Youtube, here are three favorites.
As it were…
As it were…
The ruminations of topher1kenobe
Recent tunes
The Christmas Song
Vince Guaraldi Trio
14 hours
Prelude
George Winston
2 daysJoy
George Winston
2 daysJesus, Jesus, Rest Your Head
George Winston
2 daysThanksgiving
George Winston
2 days
The Nintendo one is by far the most impressive to me. Very Escher-esque.