That is, I bought a piece of metal duct tubing, and was able to fashion it enough to pass for two "tins".
She was able to doubly one-up her sister on both taste and style, so it was worth it.
I was trying to find the molds for these cookies - I think they’re also called ‘Krokaner’ - but it’s very hard to find the forms in the US, and we’ll have to remember your ingenuity.
(There’s a German cake called ‘Rehruecken’ that is made in a sort of half-cylinder pan that might work for the cookies.)