Does anybody well a reflector like this?

Does anybody sell a hat or cap with a brim with a light diffusing reflector material on the bottom side so you could use it to up bounce your NEX 7/6 flash off of Like a small umbrella? You'd put your eye on the EVF and if you tip the flash up, the big brim would diffuse the flash. Not sure how well it could work...

i use the flash for ceiling bounce all the time, but there are situations where the ceilings are really high or where I want a reflector outdoors without carrying more stuff.

I guess I could try to make one myself, but I'd like one that looks good, not like something hacked together.