I am looking for a material that can be bent but will go back to its original shape. If you are familiar with car sun shades, they have a thin metal strip that is easily twisted and folded into a smaller circle, and then pops back to its original shape and size. The problem with the metal in the sunshades is that I need something a little bit stronger. Does anyone know what kind of metal this is and if I could maybe get it a little thicker so it is stronger. Or can anyone recommend another material? I came across a pop up tent that folds up like the sunshades and then pops open into a tent. It felt like it had a plastic tube in it that was pretty strong and flexible. Unfortunately I could not take apart the tent to see what the material was. Any help would be appreciated.