I use the No-Sew technique. I have tried sewing the tutu's but I think the No-Sew tutu's actually turn out better. I have made the bow front tutu's two different ways...I have done them where they are wrapped around the waist and I have also done the bow where it is an attachment--much like a hairbow..this way they can remove it if they wish. You can just attach the bow between the tulle pieces on the front of the tutu.
Here is an example of a tutu I've made with the ribbon front attachment.
I usually buy my tulle from Nashville Wraps is a Gift Packaging and Gourmet Gift Basket Supplies Wholesale Resource