Download free PDF Step by step guide 1.1. Measure the waist. Cut elastic to fit when slightly stretched. Stitch the ends of the elastic together (to form a ring)..2.2. Fold the tulle fabric. Cut strips 4.5 cm wide. Length: 75 cm folded, 150 cm full length. Adjust to any length as desired.3.3. Tie the strips around the elastic all the way around, alternating between colours 1 and 2, to make a ballet tutu. The more strips you use, the fuller the skirt.