Here is my example of a business card, first photo is the front and second is the back:
So, I met a guy in a job interview and we became friends that day. We talked while going back to the train station and along the way he told me that his brother needs someone who can make a graphic design for a business card. He offered to pay me but I declined since I am not yet a professional and I want to do it for free so I can put the template in my work samples/portfolio.
The business is CCTV Installation and Printer Repair so that explains the design behind the business card. Here is an example of the final output: