Unfortunately, some of the Google classic tricks are no longer functioning. It used to be that if you typed in the words "Chuck Norris" you would get a statement that says, " You don't find Chuck Norris, he finds you."
There was also a time when if you typed the word "Gravity" into the search engine you'd watch all the copy on the page plunk to the bottom. It doesn't do that anymore, but you can see what you missed here.
Umm, I don't think the author realises that those weren't ever official Google easter eggs that occurred on the Google domain. They still function the way they always have - by clicking "I'm Feeling Lucky".
Also, try 'tilt', 'recursive', 'answer to life, the universe and everything', 'number of horns on a unicorn', or walking directions from 'the shire' to 'mordor'
http://www.google.nl/search?q=christmas+lights