I saw this post on the Flannel Friday Pinterest boards @ Storytime with Ms.Emily Library with her process for making her balls of yarn. I tweaked the pattern by using my 4" circle diecut to make my balls of yarn. They were slightly tedious but not difficult. I made a 'bowl' for them too. I love this book also! This is really a fun theme with several books that would work. Knitting and yarn is so much Fun with Friends at Storytime!