I designed my own simple card that I either mail to the patient or deliver to the patient if they are still an inpatient. My design is very simple in that on one side of the card is the hospital name, address, phone number, fax number, and the statement to present to the person drawing their blood. On the reverse side has the patient name, blood type, antibody(ies) identified, and the date. I just buy business card stock from our office supply and on one side of the card print the front side of the card, and on the opposite side I print the reverse side of the card. I print the number that I need, then turn the stock over and print the same thing again, that way I get 10 cards that are printed on both sides of the business card.