Most of us quickly grow out of the habit of putting strange objects into our mouths, but Michel Lotito made a career out of it. His stage name was “Monsieur Mangetout (literally translated as “Mr Eat All The Things”) and he entertained audiences by disassembling everyday items and eating all the components. Perhaps his crowning achievement, between 1978 and 1980, Lotito consumed an entire Cessna 150 airplane.
Unlike illusionists who sometimes pretend to eat potentially dangerous objects, Lotito really consumed everything put before him. Solid items, such as metal, would be broken down into small pieces and then swallowed with the help of mineral oil and water. Most of the items swallowed would eventually pass through undigested.
Wikipedia: Michel Lotito