Every other little girl wants to Elsa so my daughter went as Elsa's Snowstorm. I took tulle in light grey, dark grey and white and used a mesh headband and made a "tutu" with long layers of tulle. I used a woven grass beach hat and cut off the brim. I hot glued the grey and white tulle all over the hat to make a cloud-like head piece. I attached all different types of snowflakes using hot glue and also hung some from the hat and bodice by fishing string. The costume took 2-3 hours to make and cost less then $20.