So many are found in books that finding one in that weight that's free is kind of hard. You could design your own based on head size and gauge, but since you're in a hurry.. I don't know, maybe these would work.
You can make this hat w/o the pumpkin and it would look normal-
http://www.knittingonthenet.com/patt...pumpkinhat.htm
http://doggedknits.com/?p=700
http://heyjulie.wordpress.com/2006/0...led-baby-hats/
http://heyjulie.wordpress.com/2006/0...c-earflap-hat/