You can make these creepy Halloween Witch decorations in three different sizes.
The yardage includes all the yarn. The smallest witch takes approximately 18 grams (65yards) Medium 23 grams (83 yards) and the large 27grams (98 yard)

They are knitted around ball pool balls and ping pong balls.

Small – 12.5 mm (ping pong/table tennis ball)
Medium – 17 mm (small ball pool ball, mine were from pound shops in net bags of 15.
Large – 20 mm (regular size ball pool ball which I have found in supermarkets and charity shops.)
They are a great way to recycle plastic balls.