Making a Pom Pom

C made a pom pom to sew to the top of a hat. First she wrapped the yarn around two cardboard circles, then she cut the yarn between the circles. Here is a photo of the yarn after it was cut. You can see the two circles of cardboard in the middle:
Next she wrapped yarn between the circles and tied the yarn tightly. After a she removes the circles and does a little trimming, her pom pom will be ready to sew to her hat.