You know, I was just thinking about his thread.. I still need the front coin entries and the little plastic coin pass-through pieces.. but I found a guy on ebay who seems to be making the little window inserts for $5.95/set. Beautiful -- reverse screened on some kind of acryllic, available in 2 designs ("25 cents" or "25 <cent sign>"), and even came with the protective sheet still on them.. very professional, I highly recommend this guy's stuff.
If anyone wants it, let me know and I'll post the guy's info.