Zen Knitting

Sweater Babe has one for sale:
http://www.sweaterbabe.com/product_cp1.htm

You can crochet this hat:
http://susan.kraus.net/pages/pattern5.html

until the circumference is 14 inches, as states in the pattern. I would simply modify it as a scullie, in other words, I wouldn’t make a brim on it.

Here is Caron’s Gumdrop Baby Hat (made with bulky yarn as stated on the pattern)
http://www.caron.com/projects/gl/gumdrop_hat.html

If you have medium yarn (worsted weight) you could make this one:
http://www.caron.com/projects/ss/ss_santa_baby_hat.html
and trim it with your bulky yarn.

This pattern looks nice:
http://www.crochetnmore.com/babypigtailhat.htm

Finally, here is one, that, although the instructions say to make with worsted weight or medium yarn, the person who posted the link recommends using either a larger hook or bulky yarn:
http://www.headhuggers.org/patterns/childpatt06.htm

Remember, the important thing here is the circumference, which should be close to 14 inches for a newborn.

Hope this helps.