There are a lot of Robot-type creatures these days. One of the most populist is most likely Wall-e. For those who don't know how he looks
http://dvd-itunes.net/wp-content/uploads/2012/02/wall-e.jpg
As there is a game called "Where's Waldo" I suggest a game called "Where's Wall-e"
Whoever finds him, don't spoil it for others! Good luck!