Have you seen those magnetic spectacle frames? I think there are more than one brand that carries it, but I think the most famous brand for this product would be Clic EyeWear. I have never seen one before until recently when I went to Malaysia for a day trip in search for a special contact lens for my friend. It was really cool, but somehow, I fear it would not snap properly and ended up with one lens higher and the other lower, then it would be really uncomfortable or may even cause giddiness.