This clip on You tube might be helpful
Try this silk store on southside of Bris = not cheap but contact them first to ask if they have anything suitable.
I think they also own Fabric Barn out Kenmore way
If you make any seams make sure they are covered or use French seams. Any little bit of rubbing can do great damage or cause irritation.
Also for everyday wear, super soft fleece is good if seams are on the outside.
Thank you for being so caring.
I recently made a hat for my friend who is going trough chemo and has lost all of her hair, I made her a lightweight cloche style and provided her with numerous accessories so the look/style of the hat can be changed on a daily basis... she loves it! I will post the picture with her wearing it.
I have made a variety of hats for chemo patients. My crochet hats have been popular, but I have found that most any style can work as long as they are lined with very soft fabric.