I've been asked to make a diffuser for a condenser enlarger, and one option for fixing might be to drill holes at either end of the glass - enabling it to be screwed directly to some sort of frame (also easier to hang up on a hook when not using it!).
Just thought I'd post this image, 1) for the original requester, and 2) in case anybody else needs anything!
I've had a few requests for stuff - from Scotland, Turkey and Malaysia! And I thought this was a UK only thread
If there's enough interest, I could get some more glass but I would have to charge for making this stuff as I'm going to get to the end of my few left over pieces fairly quickly!