You can make these creepy Halloween Pumpkin decorations in three different sizes
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 a pound shop 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 old toys.

The yardage includes all the yarn. The smallest pumpkin takes approximately 4 grams (15 yards) Medium 6 grams (22 yards) and the large 8 grams (30 yards)