I used to have and use the fancy bread tubes. Pillsbury used to make a canned French bread loaf that slid into them perfectly. Or maybe about 3/4 of it did. I can’t remember - it’s been a long time. Anyway, I’d bake the bread in the tube and then slice and use for open-faced cucumber sandwiches. Pretty shapes!
I think Pillsbury quit making that product, so I got rid of them. That was the only way I ever used them.