use poster board and fishing line. It cost about $30 for the whole design. cut the poster boards into 2 different sizes. The larger triangles took up the whole poster board, and the smaller ones took up half. stagger the small and large “teeth” when they hung them from the bar at the top of their stage. They were 4 feet in front of their back wall. Note: They easily bend. A wooden dowel would help prevent that.