I always find it interesting that objects like these must have had to have a purpose. Why couldn’t it have been a piece of art simply for decoration?
It's not like anyone actually writes down house decoration theory. You just sorta pick up on it based on visiting a bunch of people's homes in a community.
And going back to the original question, making those dodecahedrons would have required considerable expense, skills, and effort. That's not the kind of thing that can spread as a low-effort fad, and an artist who's going to spend that much time on something would be even less likely to make an exact replica rather than something original.