This is very simple and cool trick which you can do yourself.
Go to Google.com and search for " Do a barrel roll"
Example of screen shot below:
You can find a cool trick. Do and enjoy it.
2. Google Gravity
This is another trick with google.com which as barrel roll too.
And now go to Google.com and search for " Google gravity", or click this link
Example of screen shot:
3. Tilt / Askew
This is a cool trick similar as do a barrel roll too.
Just go to Google.com and type tilt or askew. You may see a screen like this.
3. Let it snow
This is trick which you can see a snow front of your computer. You can setting much snowflakes to 100, 250, 500, 1000, 2000 and 4000.
Example screen shot:
Just click the link below.
4. Let me Google for you
I recently found another trick which mos of people like to do this and paste the link in socialize website like Facebook, twitter and some others.
Just click the link below. and ask any question to see the preview. You should paste the link will be given after made a question, paste it in Facebook or twitter. If someone click it they will see a word roll on as you made earlier.
You should try this. http://lmgtfy.com/
I hope all the tricks is should you try once.
