Making this skirt took ages. Why does something so simple have to be so complex. Why is every angle calculated from a different center point, why????? After a great deal of bad language I have something that looks correct and is as accurate as I can get it. The skirt is made from some very heavy coated cardboard, about 2mm in thickness. It is easy to curve and once painted will be very strong. The rest is MDF of varying thickness. It now needs to be filled and sanded to give it a more authentic look.