I am looking for a flexible, translucent material that I can use as a "chimney" for a small desk lamp I am designing. I would like something that looks like Oriental parchment but firmer than paper since the top edge of the paper will be exposed and needs to hold its shape. I need a material that will curl well into a 1 1/2" radius and generally not discolor too quickly from a low-wattage bulb inside.
Any help is most appreciated.