Nonlinear designs credit cards for your business or special event. What distinguishes a “credit card” from a regularly printed card: it's heavily laminated with a tough plastic coating to protect it from wear and tear. It may have features such as rounded corners or magnetic strips. You can create a credit card for your business' loyal customers or for programs such as tracking the number of times a customer visits and offering a discount after a certain number of visits or dollar amount spent is met.