Materials Required:—

A square of stiff writing paper, an old penholder, skewer, or a straight twig, a strong pin or a slim upholstery nail with a large head, scissors.

This pinwheel is made of a piece of firm writing paper. Cut the paper into a perfect square, and fold it diagonally from corner to corner and smooth out again, then cut along your folds to within an inch of the center. Now cut a tiny round of strong paper or a piece of a postcard about half an inch across and take a strong short pin and put it through the middle. Then push your pin through each right-hand corner of your square of writing paper, and lastly through the center of the square, and take a piece of stick or a penholder and push the point of the pin in till it is halfway in. You will find your windmill will turn as you run, if you hold it out straight in front of you. If you can get two good sticks you can use a long one as the upper part of a weather vane. Rut a nail through, rather nearer your pinwheel than the middle of the stick. At the other end make a long slit and put in a paper tail, so that the pinwheel will keep its head to the wind. Fix your nail into the end of the other stick, and set the stick upright in the ground as in Figure 50.