If you don't know who these guys are, I don't know what you are even doing on this site.  It is very interesting to me that the Knights Who Say Ni is also the name of the group that promotes SETI@Home.  If you haven't checked them out yet please please please do so.  SETI is the Search for Extraterrestrial Life.  You can help them by downloading their screen saver, which will use your computer to analyze packets of data looking for electromagnetic evidence of alien life.  I have to believe there is something out there and one day they will get me off of this rock.  

For the record, when the Knights Who Say Ni change their sacred word, they become the Knights Who Say Ecky Ecky Ecky Ecky Pakang Zoom Boing.  I found this Flash game called Shrubbery but either I can't figure out how to play it or it's actually pretty lame.  Also, the world's largest bush is located in Cinnaminson, New Jersey, across the street from Wood Park's tennis courts.  And I couldn't find any record of anyone ever cutting down a tree with a herring, or any other kind of fish.