"Similar to this: We have an indoor camera in our home from a popular security system provider.  A little metal disk visibly and audibly clicks into place in front of the lens when the camera is not being used. It's simple, but it goes a long way in improving trust in the product"

"My guess for the "biopolymeric base" is chitosan. I'm more curious as to how they made it orange again, as most orange peel materials just end up looking a drab brown."