If you will go to Google.com you will be surprised to see 5 muppets. These are the muppets of Jim Henson. its Henson's 75th birthday(actually its on the 24th) and Google's celebrating it. As you may notice under the muppets, there are buttons that when you click it, the puppet will open his/her mouth. The muppets will also follow your mouse cursor.
here's a video about how they made the the Jim Henson Google Doodle.
now when i will be featured on Google Doodle?