In this picture, it seems to me like his wrap around scarf defy gravity. I'm not sure what material to suggest, as long as it's not too heavy. You can easily use foam craft to have that part of his attire stay in that sort of frozen in place look, with the material of your choice around it, of course. It could be pretty okay idea, it can be supported and concealed in the back of it all. I will ponder more on this later and come back to you.