Just received a couple of samples of the new Unisub coasters from Xpres, which go by the name of Scandinavian.
They're 90mm square like the usual ones but have a matt finish instead of gloss and the backing is a much lighter colour more like the colour of sand.
Anyway I've printed them and they do look very good and not being glossy they don't show up fingerprints etc. like the glossy ones do.