I misplaced the cutting tool (Cutting tool, when you are throwing, it level the edge of the clay by cutting the uneven part). How I made it in 5 minutes. You need a metal band (I found these in a trash at Home depot), a skewer, a fishing line (metal preferred), drill, hummer and metal cutter. I cut the metal band to 6-inch long, and drilled four holes, two for wire and two for the skewer. Cut the skewer, and insert into the holes, and flat the both ends of the skewer with a hummer so it stays. Cut the wire and tie it.
After I made it, I found it on the floor behind the wheel, of course.