Wanna take a guess who won't be eating cookies as much? He's big, blue, he knows what the first letter of the word cookie starts with (and that's good enough for him). He also lives on Sesame Street...
http://www.cnn.com/2005/SHOWBIZ/TV/04/07/tv.cookie.lessmonster.ap/index.html
http://www.cnn.com/2005/SHOWBIZ/TV/04/07/tv.cookie.lessmonster.ap/index.html