Hiding tiny rubber ducks has become a popular practice on cruise ships. Despite calls to ban it, Carnival hasn't. Their brand is tied to "fun," and ducks align with that.

This hobby has become very popular on Carnival, Royal Caribbean, MSC Cruises, and Disney Cruise Line ships. Most cruise lines don't officially embrace duck hiding and just look the other way, but Carnival tacitly accepted it in November by adopting a duck-hiding-related on-board character.

Hiding ducks has become a huge thing on cruise ships, at least on the family-friendly lines. Some passengers are really into it: Before they cruise, they buy rubber ducks of various sizes, decorate them,