Hi,

Over the years I have acquired fancy furniture that has this form fitting
glass surface. This 1/4" glass presents a tremendously hard and useful
surface.

But brittle.

I've made a few inquiries and local mirror shops seem to be the established
businesses fabricating exact replacements.

But, always one to save a nickel, is there something out there that is
"DIY", "do-it-yourself"?

Maybe a very high quality thick plastic that you can cut with special
tools... ?