I happen to have a bunch of insulated reflective "material" for just such a use. Weve been getting Blue Apron meals and they come in a big box lined with the stuff for insulation. I've been saving it. I'd be willing to send a piece for you to try and craft one. They are about 18" box shaped. The catch: you need to report on here how it worked and how you made it. I'll even cover the shipping......
