I think he's just going for appearance, there are many options i think for him to consider. And I don't think there would be any health issue, if there is such a problem with a metal ball you could laminate it in a safe composite clear plastic. Or whatever term you would use for "thin layer of plastic around the titanium/platinum/steel prosthetic eyeball"
Check out your options man and go for it! It sounds like a great idea to me
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"Asking a bomb squad if an old bomb is still "real" is not the best thing to do if you want to save it." - denim
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