There were some plastic lenses made, and a guy here on the Cabe that was working on a glass reproduction.
I bought one of his glass tail light lenses, and it looked so good, that I thought he'd get a headlight lens out for sure.
The last communication I had with him, he said he was having some problems perfecting it, and that he'd let me know, when he got some good ones made.
Then I never heard from him again.
If a genuine original glass lens can be had, then I've got a genuine original Aerocycle with a cracked lens.
I'd be very interested in a glass lens, if you come up with one.