(TrendHunter.com) The Lay's fingertip washing machine has been shown off by the brand in Japan as a limited-edition way for consumers to clean their hands after enjoying a crunchy snack. The miniature washing... (TrendHunter.com) The Lay's fingertip washing machine has been shown off by the brand in Japan as a limited-edition way for consumers to clean their hands after enjoying a crunchy snack. The miniature washing...