Re: DR WHO eye drive
Well, I can tell you what definitely DOESN'T work: Molding the leather over your own eye.
Watched again, it looks like the screen used eye patches are white on the back and gloss black on the front. You can see the layers from the side, especially on River's since hers is so poorly fitted. So maybe not leather at all. What else forms? Styrene? Maybe they're vac-formed then painted with something like black plasti-dip?