I found this great pattern by Chrochetology here: Hairbands Appropriating Hat Patterns
This is her original versionn and her original picture. You can see how it looks on the head. I think it´s very pretty:
Instead of the grapes I made the rose brooch so I can war the headband with or without the flower.
I used 100% Mercerized Cotton and a 2,5mm Hook.
31 grams for the headband and 19 grams for the rose.