The only thing I can suggest is taking a look at this:

http://www.renderosity.com/mod/gallery/index.php?image_id=706427&user_id=122226&np&np

The mirror as I recall was just a rectangle with a reflective surface. However you could duplicate that with reflectivity on one side and transparency on the other, But I think from other discussions I've read, Bryce may not give you the infinite reflections that a real world mirror-facing-mirror gives us.

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...