The skirt would be made of a gauzy fabric -- perhaps chiffon -- to evoke an ethereal sense that the movement of jellyfish bring to me. With pulses of power to the muscle wire, the skirt would contract up and down in the way a jellyfish does when it moves. There would be ragged strips of more gauzy fabric hanging from the edge of the skirt dusting the floor in the skirt's relaxed position, which would ideally billow up and slightly out when the muscle wire contracts as the model is walking down the runway. Each contraction would shorten the skirt enough to see a peek of the model's shoes as she's walking.