Something the size of a small car rolls into the room, turns its head towards a guest and addresses them directly by name. Nobody quite knows how to react, which is the fun of it.
From LED robots working a crowd and posing for photographs, to full scale animatronic creatures that move, breathe and react to people walking past. They roam through a drinks reception, greet arrivals, hand out awards or simply exist in a corner being unsettling and brilliant.
It suits product launches, exhibition stands and themed parties, and it works on adults as much as children. Nobody walks past without stopping, which is precisely the point when you have paid for the footfall.