My personal favorite?
Viva La Vulva!
Link: https://www.google.com/search?q=vagina+hat+march&rlz=1C1GIWA_enUS626US626&tbm=isch&source=iu&ictx=1&fir=tNToAf90vhkcuM%253A%252CnUH_2SwdAnNN9M%252C_&usg=___LNtVw1y0R_2CfK4pfQk6tNcE9I%3D&sa=X&ved=0ahUKEwig3uWmvMHaAhUDy1kKHT15CHYQ9QEINzAG#imgrc=tNToAf90vhkc
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