The community have already found four Easter eggs on RAGE!
WOLFENSTEIN 3D EASTER EGG: The first one you will find is in the first mission in the room there should be a little trophy pick it up. Follow the steps on this video http://www.youtube.com/watch?v=PR9tqHDXo8A NOTE: Remember to sell these items as they are useless to the player.
QUAKE EASTER EGG: This easter egg is located in the wasted garage in the Wasteland. Inside there are three buttons you have to press follow the steps to this video http://www.youtube.com/watch?v=7g6UulkUboI
BLAKE GRIFFIN BOBBLEHEAD: This is a rare bobblehead of the NBA L.A Blake Griffin its located on Mayor Redstones Desk. Currently Unknown place. Follow these steps http://www.youtube.com/watch?v=0Od7DZmrEn4
FALLOUT VAULT BOY BOBBLEHEAD: This is a rare bobblehead of the Vault boy out of Fallout. Its Located in Wellspring. Follow these steps http://www.youtube.com/watch?v=EQt_jNHFPjI