My son's girlfriend Esther is a clever artisan who works with recycled materials in all her projects.
She gave me a tour this morning (I am visiting them) of her recent series of hats, and I flipped for them. She has them in her Etsy store.
Have a look!
She is serious about this aspect of her work.
The used hat stand was purchased on Ebay, and paper mache-d with torn grocery bags and a paste of flour, water, and salt. (Find some recipes for this here.)