“After the death of the Emperor Palpatine and Lord Vader, the Empire made a last ditch attempt to thwart their enemies by rushing to complete their fleet of Venator class super star destroyers. However, by the time these vessels could be deployed, the Rebel Alliance had already developed its own super weapon, designation KR-KN.”
Iain Heath, also known as Ochre Jelly on Flickr, created Release the KR-KN! His original goal was to liven up the Super Star Destroyer from is grayness. Make sure to read the whole store here. Lets make this happen in Star Wars VII.