At the Chubu International Airport, I saw hina dolls sitting casually along a sidewalk into a building. They didn't sit neatly on a tiered stage, just like you would expect with a regular set of hina dolls on display.
They are happily "retired hina dolls".
When their outfits got worn out over the years and were not suitable to be displayed at home, people handed them down to various public communities in towns and cities across the country. People arranged those dolls to entertain visitors, so as to energize communities during the hina doll festive season.
So they are called “fuku-yose-bina” in Japanese, which literally means “good luck inviting hina dolls.”