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well and are very light. They are usually made of a square piece of paper which is cut on the diagonal nearly to the center, Fig. 149; one of the points of each section is then brought a little past the center and a pin pushed thru, Fig. 150. These little whirligigs can be attached with the pin to the framework of the kite at various places. Larger mills can be made of stiffer paper, as bristol board, but the larger sizes will need more anchorage. The wheel will need an axle of wire and to secure it, a paper, perhaps several, will need to be pasted to the wheel and on the wire to prevent its flopping over. The wheels are made from a circular piece and are slitted from the circumference to near to the center and the sections are curved by drawing the paper over a pencil or similar object until the right curvature is obtained, Fig. 151. All the sections of a wheel are curved the same way but where there are more than one, part should turn to the right and the others to the left. The framework supporting the axle should reach across the opening and there should be a strip on each side as shown in Fig. 152.