7. Concrete Donkey
http://www.youtube.com/watch?v=VVANw_3czzo A donkey, a donkey, my kingdom for a donkey! Adapted from a line in Shakespeares Richard III, the above quote is often cited by worms about to unleash the concrete donkey, a huge chunk of concrete in the shape of an equine being. Despite looking innocent, the inanimate object (which somehow possesses the ability to make sounds) is highly destructive, and will destroy everything directly beneath its placement position until hitting water. Again, the inspiration is unclear, though Im beginning to suspect that members of the series development team may have been under the influence of hallucinogens at some point