If you wear Flying Eyes - Otus glasses and need to simulate IMC these magnetic clip on foggles are easy to use. I have 3 versions if you need more or less coverage. As a bonus it also works over the top of any of their sunglasses magnetic clips ons.
I only know it works with the Otus model. If you confirm it fits for other models, please comment.
Ensure the magnets are facing the correct polarity. I let the epoxy setup with the foggles attached to the glasses to ensure the magnets are fully seated.
The author marked this model as their own original creation.