This is a wonderful suggestion to help even quiet women share about themselves. Rather than using a lot of words, which might feel uncomfortable to them, they can demonstrate their creativity thru scarf tying. It would be fun to have a variety of scarves on hand - oblong, square, shoulder-wrap style, solids, patterns, silks, cottons, etc. To help the women who is not gifted in this area, you could allow suggestions to be called out from the audience.