i have several pair of these and i pop out the lens and spraypaint with flat black including the silver trim which looks cheap.  the paint is fine except behind ears and the nose, i need to use painter thinner to remove or it rubs off on my skin.  after a week or 2 they're perfect.  i just wish they'd spend a little ore and make the plastic frame stronger.  always breaks on the top.  id pay twice for better quality, but the flat paint with the shape of these is really nice.