Are there any "over the glasses" reading glasses?

To be clear, I don’t mind looking dorky.

I wear progressive lenses, which under normal situations work just fine for me. But we are going to all computers at work, and in order to read the computer screen I need to tilt my head back so I can engage the bifocal part of the lens. What I’d like is to have a pair of glasses I can put around my neck that will go over my regular glasses—sort of like those over the glasses sunglasses. I could use reading glasses, but those are designed to be in place of the glasses, which isn’t an option for me because of my astigmatism.

Has anybody heard of such a product?