Yes, another windshield but this one did take a bit of thinking about. The problem was caused by the choice of pot - 125mm in diameter but only 55mm high, so trying to get something that would actually work, while still fitting inside the pot was a little tricky.
The solution was to make it in joinable pieces. The bottom section is 'hinged' and the diameter can be adjusted to allow for conditions. The tapered (although the pics don't really show it) top piece then 'clips' on and will conform to whatever diameter the bottom section is set to. Once `dismantled' it all rolls up and fits inside the pot.
Like I say, dull but someone might get some ideas.