Cards used in the form of gaming to memory card are used as free flash card template. You can even download PSD free flash card with red light, blue right and cards with text on it to be inserted in your laptop, computer and mobile phones. You can also see Note Card Templates
Technological based people opt for flash cards which acts as base on which you can write and put pictures to add unique codes used as your email id, your name and other such details as needed. Micro chips are also used as flash cards which are another medium of making a template that can be of any size.