The (early) Atlas ICBM was even less substantial than a soda can. There used to be one parked on the front lawn of our local science museum. It had to be kept

The (early) Atlas ICBM was even less substantial than a soda can. There used to be one parked on the front lawn of our local science museum. It had to be kept inflated with pressurized air. When the time came to retire it and they let the air out... https://ottawacitizen.com/news/local-news/museum-shrugs-as-atlas-rocket-lies-wrecked-in-snow https://ottawacitizen.com/news/local-news/museum-shrugs-as-a... In service, of course, the necessary pressure would have been maintained by propellant boil-off.