High School FFA Ag Mechanics class. Those kids are always cutting and making stuff out of steel. Not advocating a 16 year old make your piece, but those kids can do some awesome stuff. Kid I went to high school with made 3D steel roses.
Do you notice much overshooting with such a high surface area of cooling? I have been researching making my own Cooling Jacket with silicone tubing and a neoprene yoga mat, but the cost was going to be about the same as the CoolZone Jacket.