You would be required to determine whether the QR codes would be suitable to your specific business and potential audience needs. In the event of you feeling there has been a place for QR codes in the marketing toolbox, you would have several creative suggestions on how you could make the most of benefits offered by QR codes.
The site www.oysso.com would help you generate QR codes to be displayed on your business cards. It may not be a creative idea, but definitely suitable for several businesses using QR codes. It would assist you to make space on the business card with all your contact info to be easily provided on a QR code.