Photo Archives News Channels Special Features Forums Contact About Privacy Sideshow Collectibles: Optimus Prime Almost Gone! Posted by D_Martin on October 9, 2008 at 11:23 PM CST: At the time of this post, Sideshow has only 10 of Popbox Collectibles' Optimus Prime Electronic Bust Scaled Replicas available. If you were on the fence with this cool collectible, now is the time!