Current city lighting systems that leave many areas underlit are an invitation to criminals. However, the addition of ubiquitous surveillance is an intrusion on privacy and does not help at the moment of attack. This problem was the motivation for Twinkle, a luminous creature that lives on light posts. These curious airborne animals are attracted by human activities. During the day, they rest on urban light posts, expanding their solar panels. At night, they interact with individuals walking on the street, each in their own way.