Go ahead, search Google using Chrome for [a long time ago in a galaxy far far away] and you will get one of their coolest search user interface easter eggs.
Google will change the search results page from it's white background with blue links to a black background, with yellow font, that scrolls like a movie credits. Oh, and click the sound button on the right to listen to the Star Wars theme music.
Here is a video capture of it in action:
Here are some older easter eggs from Google that also rock:
- Easter Egg: Google's Search Results In 1998
- Atari Breakout: Google Image Search Easter Egg
- Google Super Mario Bros. & Score Coins
- Google Maps: One Does Not Simply Walk Into Mordor
- Google Marquee HTML For Scrolling Results Count
- Google Easter Egg: Up, Up, Down, Down, Left, Right, Left, Right
- Try Searching Google For [Do A...]
- New Google Easter Egg: Blink HTML
- Google Typography Kerning & See A Fun Subtle Easter Egg
- Google Easter Egg For Bletchley Park
- Google Teapot Easter Egg Uses Mobile Gyroscope
- Google Easter Egg: "When Am I"
- Google's Special Treat For The Qingming Festival
- Conway's Game of Life On Google
- Google's Let It Snow Hack
- Google's Blink HTML Trick Works On Query Refinements
- Defend Your Google Search Results: Zerg Rush
Forum discussion at Google+.