I found a great site, http://www.kittyhats.co.uk/
They sell authentic replica period hats:
Well, the period costuming is a little silly and not zero-era, but the Tricone hat has never officially gone out of style, and it looks fantastic! Grey, brown, dark brown, navy, and black - the three-cornered hat is versatile (and usually reversible!).
Check out this badass and his hot wife:she loved the tricone!
