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On a square sheet of paper cut from the corners four straight-line incisions. Fold toward the middle every second end, and pierce all four tops with needle trough the center of the sheet.

How to Make a Pinwheel:

Attach the end of the needle to a wooden stick and the pinwheel is finished.
Before you make the pinwheel, it can be colored in different colors and also you can experiment with different kinds of materials as replacement for the paper.
You can place more than one pinwheels on one stick and use it as a scarecrow.