I got a pretty box of chocolates for Christmas. So pretty in fact that I couldn't throw the ribbons and flowers away. Fortunately I had a plain black hat to jazz up.
I glued the ribbon around the hat first of all. Then I pulled the rose apart and sewed it onto the hat, one layer at a time to retain the fullness. Lastly I had a broken bracelet and I used a part of that to sew in the centre of the rose.
The morals of this tale are: never throw anything away; hats can never be too dramatic or glamorous.