Genius Keith! Just don't put a mirror behind it and you're sorted.
I'm going to show you my 'guilty secret'. It's not that I wish I hadn't bought it as it was (obviously) a cheap item, but it is placed where no-one can see it. I found it in my 'glass' search on Ebay and even though it wasn't at all what I was looking for, it drew me in and I had to buy it. The Ebay photo was pretty bad so I didn't know what I was buying really. Anyway, here it is - mostly glass except for the figures and embellishments. To be honest, if I could be totally frivolous, I'd probably collect these things, and the little lampwork figures that come in glass boxes with a mirror behind - Oooh they are awful, but I like them!