I'm looking for a simple metal lorgnette, the kind that usually come with a polarized demonstrator. I want to make up a range of lenses so I can show patients what they can expect as far as lens thickness using various materials.

Years ago my lab set me up with a pair so I tried calling them. They knew exactly what I was talking about, but they didn't have any or know where to get them. I was hoping someone here might have an idea where I can get about 6 or 8 without breaking the bank. I tried eBay, but unless I want some vintage thing from the 1870's I'm out of luck.

It's driving me batty, I know they're out there, but I just don't know where to find them. I tried Hilco, Optisource, Western Optical, and Eye Supply. I'm out of ideas. Please