The effect on Serpentor's cape was achieved by sticking one of thsoe pain in the butt twist ties that hold vehicles into their pacakges into the back of his "skirt" an sticking it straight out. I formed a loop in the end so is held the cape in a more spread out look.

__________________
The United States will conquer Terrorism with the help of God and a few Marines.

Some people, when trying to avoid thinking about those things that cause them pain, turn to drink, or perhaps food, or drugs... I turn not to any of those... I collect action figures, turning my mind to the hunt, so that I might find a mote of peace... Over the years, I've found that alcoholism is much more socially acceptable by far.