Nice video!
Not that I have....yet..
Been thinkin about a king size, flat sheet, high thread count, and some 'camp dry' tent waterproofing spray..
It'll require some sewing ..but, would/should make a very lightweight, packable, shelter.
Another sheet or pillow case, could supply material for stake and edge ties or reinforcements.
Someone ask about rain..my thoughts;
If, you are under a dry roof....
- at the back of your shelter: usually the high side
- starting in the middle (with a stick,stone..??) carve a "U" shape in the ground; around to about two feet in front...2-6 inches deep, give or take
- with your shelter and you inside the upside down "U" the ditch will help divert ground water and shelter run-off..
Hope that makes some sense to one who needs it..