Every year, Personal organizes a music festival: Personal Fest, that attracts more than 50,000 people in each edition. A dynamic festival, but the organiser found that there was a place forgotten by everyone that was as unpleasant as it is in all music festivals: the portable toilets. That’s why they created Rhythmical Potties. Seven toilets with an audible device that was activated only when was occupied.
List of references used: creativecriminals.com/