It's Been A While Since I Saw Anyone Wear Those Hats... There Are Probably More But I'm Too Lazy To Look. :3
1.Ronin Hat (Didn't See Anyone With It Yet)
2.Event Hat (I Never Actually Saw Anyone Wear It)
3.Toga Party Event R.P.S. Hat (There Is Probably 3 Person With It Who Still Play, So Whoever See Someone With It... Ask Him How Was The Toga Party Because I Don't Remember.)
4.Tiger Plushtoy Hat (I Got It At Token Shop When It Was Closing And You Were Able To Get Token By Killing Baddies)
5.Viking Helmet------------^