Alright, so here's a product that not many people are aware of, but is pretty much MADE for bushcraft in my mind:
Its called the Poler Magic Tarpit, and its a combo space blanket, small tarp, and poncho. So far I have only used it as a poncho, haven't set it up as a tarp. So far, it works just as promised by the website, reflects heat back to you like it should.
Cool company, To the best of my knowledge made in the U.S., at least a U.S. company.
I will post some more pics of it in use soon!