How It's Made Season 10 Episode 1 Magnets, Cooked Ham, Silver-Plated Teapots, Crash Test Dummies ( Air Date 2008-05-21 ) Genre Documentary category. Overview "Metal alloys are magnetized and finished into permanent magnets, pork is cured and cooked into ham, formed metal teapots receive a decorative coating of silver, and instrumented human models are assembled for use in automotive crash testing.".