You may need to adjust the tilt of your chin to make it happen, but when they come together you’ll see [John Lennon] pop out in 3D. This was made using a 3D rendering script for The Gimp.

Music legend Paul McCartney paid tribute to late Beatles bandmate John Lennon at his surprise concert ... his elbow atop the piano and, with his chin resting on his hand, took a look around ...