"recycled" lenses

Does anyone know where I can get a bunch of "recycled" lenses?

I'm going to be teaching a physics class on optics and want to get a
bunch of them to bring in for the students to dissect and rearrange.

Feel free to email me off list if know of a good supplier or if you'd
like to donate any "closetware", old doorstops, baseball bat
substitutes, paperweights, etc.

Thanks,

Barry
Received on Mon Jun 6 22:17:31 2005