I saw these at the local Toyota Parts Department and I had the guys order one for the '82-'85 Supra. Fits great! With tax it ran me $32.80. Pretty snug fit to both sides, top and bottom.
Oh, I was actually asking Steve from the initial post. LOL. Sorry. But I agree. Your custom cardboard shade should be super easy to fold since it’s a rigid material. I’ve used the cardboard type when I first started using them in 88-89. The pictures in the original post appear to be a foam material. Similar to the white, packing foam that comes in rolls/sheets. Only for the sunshade it’s a thicker mill. Even though it comes folded as an accordion it still appears to be tricky to refold without becoming frustrated and crumpling it into a ball. Of course, that’s just what I’ve seen my buddy do with his. LOL. Never used one like that myself. Was wondering if this custom made foam shade was of better quality and ease of handling.mine folds up like an accordian, scott. because I glued my foam/foal material ot the cardboard, I cut slits slits along the fold lines to relieve the pressure and allow easier folding. It's not convenient as some of these things that fold up into a circle, but it's not a problem at all. If I get bored today, I'll post a picture of what I have made!