I believe it was CAO or SMS (leaning more towards CAO) that marketed a line of meerschaums that were coated so you could handle them like any other pipe. I've only seen a couple of them, and they were VERY shiny. anyone remember those?
My 4th or 5th pipe was a meerschaum, and my mentor, the shop owner, was someone who didn't touch the bowl, so I didn't touch the bowl. I did enjoy smoking it, but I also didn't like to be mindful like that. I'm a fastidious person by nature, so if I can get away from that, I do. I've never owned one since, but if I did, there's no way I would treat it any differently than a briar or cob.
I haven't been in a shop for a while, but back when, they usually kept the meerschaums under glass to discourage people from needing to handle them. It's a nicer method than slapping hands away from them.