Society of Blue Buckets

”The Society of Blue Buckets (Russian: Общество синих ведёрок Obshchestvo sinikh vedyorok) is a free protest movement that emerged in Russia in 2010 as a response to the arbitrary, self-serving use of emergency rotating blue flashers by public servants. Inspired by blue toy buckets‘ strong resemblance to emergency blue rotating lights, members of the Society affix buckets to their vehicles’ roofs during automotive flashmobs, as a manifestation of their protest against misuse of emergency lights…”

Source: Wikipedia