I'd say invest in a paci clip and some extra pacis. But really... I don't think it's necessary to sanitize the baby. One thing you could do is limit where people can touch her. Say, "Sure, you can play with my baby! Here, aren't her toes just adorable?" I've got friends who work with teenagers who inevitably want to touch/kiss/play with the baby, and they limit teenagers to the baby's feet and tummy.