No
To become a hollow, another hollow must eat your soul. Once they have taken your soul, you become a hollow. :D
If a steel ship were not hollow, it would be much heavier and have a higher overall density. This would make it more difficult for the ship to float and it would likely sink. Hollow spaces in a ship contribute to buoyancy and help the vessel stay afloat by displacing water equal to its weight.
With your gummi ship.
why is there stones in the bottom of the santa maria ship
Because it is hollow.
The ship sank to the bottom of the ocean.
A pyramid is HOLLOW.
the bottom
Hollow areas in the heart that receive incoming blood from the lungs and ship it out again are called chambers. The human heart has four chambers.
double bottom structure
She doesn't have a Hollow in the series. However, she does become a Shinigami-Hollow hybrid in the Bleach:Fade to Black movie. But Ichigo purifies her with Zangetsu, killing the Hollow inside her.