One recent eBay find was a set of six Mons og Mille trivet plaques by Figgjo Flint of Norway, designed by Turi Gramstad Oliver. Here are two of them. I tried an online translator for Mons og Mille (although I knew "og" meant "and") - and it means Mons and Mille. So there you go.
The backs all have the identical mark. I like that even the marks on the back look like they were designed by Turi.