So, I've been trying to think of some alternatives to the roller-style shades and thought I might be able to copy what they use in the space shuttle
These are accordion style, and made of heavy fabric with kevlar (I think) stiffeners. The ones at the front windows are kind-of secured within a channel during launch, then unfold and pull into place to cover the window. They secure around the frames using velcro. They're not real pretty, but I was thinking of something like this - maybe not fixed in place - that would match the cutout of the window and hold in place using ...... not velcro but ...... magnets. Maybe paint the window screen frame using that magnetic paint????
What do you think? More of a PITA than what it would be worth? I do like the Oceanair blinds, but they're a little too dear for me right now ......