Individual Rivalry: IT& HERE! Great tutorial on a simple maxi skirt with exposed elastic waist. Also links up to a circle skirt tutorial for girls and women with good instructions on how to sew the elastic on.
Instructions for a circle skirt (adult sizes too)-- exactly what I'd like for dancing because it will be twirly, but it gives instructions for fabrics OTHER THAN FELT! (I've always wanted a circle skirt, but felt Poodle skirts are just so cheesy.