I'm going to be making tutu dresses for my daughters and I'm trying to decide what size crochet headband to use for the dress. The choices are 1.5", 2.75", and 5". My twins are 4 months old and my oldest is 2 years old. I want to make a headband too so I'm guessing I would use the 1.5" for their headbands but I'm not sure what size to use for the top of the tutu dress... Have any of you made these?? If so, what advice can you give me?? Thank you!