Today I learned that the US Navy traditionally allows the infant children of crew members to be baptized in the upturned ship's bell. A 2021 Navy press release about such a baptism onboard the USS Kearsarge says that this tradition was borrowed from the Royal Navy which permitted the such rites in foreign ports either in or under the bell.
A webpage created the National Bell Festival, a non-profit organization that supports the restoration of historic bells, says that the practice is also followed by the US Coast Guard, the Royal Australian Navy, and the Royal Canadian Navy.
This video from 2017 shows a baptism performed in the bell of the USS Gerald R. Ford.
Photo: US Naval Institute