Reusing Water
Ever wondered what else Kim K is endorsing? Body sweat. Yes, you read that right. With her massive fan base, she could probably make money selling bottles of her sweat. How does she collect it? By wearing her thigh-high boots. She simply slips them on and struts around.
After a photo shoot or a day at the office, those boots will likely smell of salt and sweat. Bet her fans would pay $100 for a 5 ml bottle. Of course, everything is auctioned privately. That way, she can earn a few extra bucks compared to mass marketing.