It was designed by Googler Clay Bavor who used 884 individually printed 4×6 photographs of people, places, and things around the U.K. (all of which were taken by Googlers).
He has also graciously posted a time lapse video of its making. (The camera shot a picture every 7 seconds so the 5.5 hours of work got compressed to 1 min 20 seconds in the video)
Rubik’s Cubes Galore (Taipei) – made out of 850 Rubik’s Cubes – First Prize
Periodic Table of Google Elements (Mountain View) – an arrangement of facts and stats about Google and the Internet
Scrappy (San Francisco) made entirely out of food packaging scraps from the microkitchen