I was asked if I could draw on some blank wool and cotton hats. I started by sketching on them with pencil. I ended up using an assortment of markers: fabric, permanent, and paint, as well as acrylic paints with fitch brushes, so the hats would be washable.
So here are a few samples of some hats I customized for various people.
It was a fun challenge to draw on a round, 3-dimensional, fuzzy surface, including the visor.