In Belgium you have this amazing burlesque duo called Rebelles d'Hotel. I so adore their bellboy costumes that I made a hat inspired by their outfits.
The base of the hat is ready now. Time for the ribbons! Sew them where you think it's pretty. I sewed a ribbon around the base of the hat and one over the sew lines of the circle.
Two final steps: first, cut a piece of ribbon which can go under your chin and over your whole hat. Make it a few centimers (or about an inch) longer so you can make a loop at the end. Sew it to your hat (cover the sew line where the ends of the rectangular meet).
Finally, sew the two buttons over the crossing of the ribbons on the side.