I've got some rimless eyeglasses bought years ago from Zenni that I love and that are in perfect condition w.r.t. the frame, but need new lenses. Zenni won't sell me the same ones again for some stupid reason (something about reducing the allowed Rx strength on those frames due to customer feedback).

Anybody know a good place to get eyeglass lenses by themselves, so I can cut and drill the damn things to fit the frame myself?

(Note: I'm sure it's possible to have a brick-and-mortar eyeglass shop do it for $$$$$, but I'm cheap, so no.)