Not a great help I know but: I didn't realise you could get those one thing one end, and another thig the other containers.
Not that they appeal to me. Not so long ago I spotted a LoSalt salt cellar for the table, and I had been looking for one as I tend to use it (being a salt lover) and it'd be nice to have it labelled appropriately and revert the other salt seller I have to hold normal salt. But when it came it was not only plastic :-( the switch on the side wasn't just decoration, it worked to open one end or the other !
One was expected to put LoSalt in one end and pepper in the other. Most disappointing. I filled both ends with LoSalt but I can't see the point of the novelty switch/split myself. Why they couldn't put their "ad" on the side of a proper ceramic one, I do not know.