Go to the dump. If you have one that will let you get near the contruction debris area. Usually in a remodel old sash is getting heaved. Tough part is finding with glass that's intact.
Also, if you see a renovation going on with new windows. Possible that old sash is still on the sight.
Or drive by bassmasters place. I am sure he has got piles of crap scattered around with some sash over by the junk cars or the old washing machines....
