At present, the advertising industry lacks creativity in communication. Most of them are monotonous posters and TV advertisements, which do not play a big role in today's information age. Now that spring has come, girls' skirts are getting shorter and shorter. A bench on the street in New Zealand prints small advertisements on the thighs and backs of people who have rested on this bench. I provide seats, and you promote for me. It's a win-win strategy. It seems that public services will also have sponsors in the future.