French theme party supplies dress a Bastille Day do, a Paris or Moulin Rouge night or a cafe-themed birthday, in the blue, white and red tricolore with flags, bunting and tableware. Add a beret and a string of onions for the full cliche and lean in. They line up with our international flags and 6 Nations rugby ranges across the full party themes. Keep the blue navy rather than bright, so the tricolore looks French and not American.