The magnetic stripe is the standard for storing information on a plastic card, used for numerous applications.
SMART/PROXIMITY CARDS These cards have single access, and built-in authorization codes to enhance your plastic card program. Plastic Card Embossers
Plastic card embossers are capable of creating thousands of Blank Plastic Business Cards if you need that many, but they can also economically produce just a few at a time.
Embossers can be used to make however many (or few) cards you might need at any given time.