In search of a splashback

With the cabinetry in place (even if it does have a misplaced cut-out), we can start thinking about what kind of splashback to put at the back of the bench. We toy with the idea of using the tiles given us by a friend (wrong colour) or the same tiles as the bathroom (right colour, but a rough surface that doesn't seem ideal). We visit the local tile place and scan for pale grey tiles, but can't find anything we really think will work.