You can work with the hay bales, if you can move them, I have made incubators using them, made a square, put plywood over the top, used a couple pieces and hung electric light bulbs on drop cards, the chicks did fine, easy to care for, LOL, until the feathers came in and they wanted to see the rest of the world.
Using the survival blanket, would mean that any box could quickly be a solar cooker, if aimed at the sun.
True about the survival blanket and we get enough sun here usually to cook most things.
Off to work for me, ya’ll have a good day.
Any info on what works when it comes to commercial solar ovens. Looking for the least expensive that won't fall apart. Thanks.