Google "Let it Snow"

Here's one interesting thing.
1. Go to google.com
2. Type "Let it snow" in the search box and hit google search
3. Watch as snow flakes fall down and your screen got blurred by snow. :D
4. You can simply click "defrost" when the snow has piled on your screen or clear the screen with your mouse (Simply click anywhere and drag it to erase the blurs)