I made it out of stiff black felt, handstitched the wedge into a cone and the cone onto the brim. Then I added ribbon, layers of feathers, a felt flower (cut on my beloved Big Shot Pro), and a lavendar glass sticker. The sticker didn't stay stuck.... so I sewed a slightly smaller black button on it and glued the sticker onto the button. Then I made a little band on the bottom, over the hat hole, and attached a hairclip.
Wouldn't this just be so elegant over an updo of curls?