Hats:

Baron hats: Probably the highest quality hat makers.  They make hats for the pictures in Hollywood.

Miller Hats: Ol’ Possum got his hat from these folks.

Golden Gate and Knudsen Hats: Colonel Knudsen will even size your head for his hand made hats.  As seen on the Mythbusters!

Cowboy Hat Creases: A neat website with a poster that names all of the hat styles.