We use crib cards at the hospital where I work that are supplied by a formula
company.  We write the name in bold magic marker across the top and also in
bold marker the form of feeding in lower right corner.  During certain
hospital inspections we have to write the names ink so people veiwing the
babies can't see their names due to patient confidentiality.  Maybe there was
a complaint, that's usually how things get changed.  Susan Early RNC NJ