Modern tattoo culture has long gone beyond pure aesthetics or symbolism. Today, body art is increasingly playing with functionality, turning the human body into an interface for interacting with the digital world. A prime example of this trend is the story of 24-year-old Amsterdam resident Levi Tang, who decided that an ordinary drawing on his skin was not enough for him. The young man integrated an element of everyday life into his image by getting a working barcode of a loyalty card for the popular Dutch supermarket chain Albert Heijn tattooed on his arm.