Take a metal belt buckle of any size or shape in your one hand and a simple black permanent marker pen on the other hand. Now try to use the fine tip of the pen to draw some little polka dot like pattern that you would prefer. You can make any pattern of your choice. It can be squares, hearts, swirls, alphabets or even your names. If you prefer your belt buckle to be fully covered in rhinestones then you are not required to make any patterns on them with permanent marker or simply avoid the above mentioned step.