Customizable Lens Clip for VR Visors (Single- or Dual- Lens)

This is an evolution of my old Lens Clip: http://www.thingiverse.com/thing:634507
It can generate the same things as that one, but also has DUAL LENS SUPPORT!

I haven't yet come to any conclusions about whether more lenses means better quality, but this provides an avenue to play with that idea.

You'll want all of your lenses to be roughly the same diameter, but you can tweak each diameter individually.