Yes, I think I will do that - found a friendly glass shop today and have ordered 20 for tomorrow morning, so I can start making plates as well as sticking film to them. Hoping 2mm glass will be ok, there is about 5mm space for 2 plates and paper between should be ok, dont seem to be able to get thinner glass.

If you boil the sugar it should work, that makes it go sticky. I might just use spraymount though...