https://www.cruisehive.com/carnival-cruise-line-offers-signature-items-for-home/92085
Guess it was just a matter of time, although I'm a bit surprised they didn't do it a lot sooner.
Since the major lines follow each other like lemmings, I predict you'll soon be able to order similar items from NCL, RCL, and all the rest.
Although malls are dying, I'm wondering if the next step is brick & mortar stores. Something to compete with Bed Bath and Beyond. Perhaps they can call it "Ship, Shore and Beyond"