Zentai advertisement

When refer to advertisement, you may say that there are so many ways to promote products. The most common way is to ask the star as the spokesperson. This way is not simple and it will spend much money. But it really will attract many people's attention especially for fans. Are there any other efficient and economic way to promote the products？
Look at these two men, they wear the pepsi symbol spandex costume. Yeah, they want to ask the other people to buy their products. Wearing this kind of full bodysuit, they can not be recognised by anyone esle. So, it doesn't matter who is wearing it. The maker of pepsi can ask two normal people to do this advertisement. At last, he can save much money and time on it. And this is also very attractive and different.