roadwitch
n.— «Ted Dewan…has come up with the idea of “folk traffic calming.” This is where art installations meet road safety, a kind of sleeping policeman that’s been influenced by Damien Hirst. These type of “DIY traffic-calming happenings” are described by their creator as “roadwitches” and have included an 11-feet high rabbit, a big bed (for a sleeping policeman), a Casualty-style fake crash scene for Halloween and the setting up of a living room in the middle of the road.» —“Driving the argument home” by Sean Coughlan BBC News (U.K.) Nov. 22, 2005. (source: Double-Tongued Dictionary)