Google executive Dan Morrill has unveiled some of his early concept illustrations for the Android logo.
He showcased the four colourful robots, dubbed 'Dandroids', on his Google+ account. They were rejected back in 2007 in favour of the now iconic 'Bugdroid' design.
Morrill said: "They had a brief flurry of minor popularity amongst the team - enough to pick up the nickname 'Dandroids', anyway.
"But then Irina Blok (as I recall) presented her work: the Bugdroid we all know and love. Funny how the professional work is of vastly higher quality than the amateur, isn't it?
"Even so, these guys have the distinction of being the first proposed mascots for Android (that I'm aware of, at least)."