Made with three balls of worsted yarn in three different colors, these adorable hats will keep the sisters’ and brothers’ heads warm all winter long. Two are inverses of each other, one is its own bobbly self, and of course, there’s the black sheep of the family.

Be aware that these four hats use up nearly every inch of yarn. (See photo of the leftovers.) If making all four you may want to buy fake-fur pompoms or a fourth ball of worsted to improvise with just in case.