I do n't know if I 'll finish it in time for her big party , but I 'll give it a shot . If not , I know I can finish that boa thing she wants , and save this one for Christmas . Tomorrow is Russell 's first day of preschool .

Question: What may be the reason for them being able to finish the boa thing ?
Answer: It only takes one skein of yarn .It 's not a pattern they know .It;s a faster pattern .It 's made of a bigger yarn .