This artificial elephant was one of the, er, large, pieces that roamed Londom last weekend:
French street-performers Royal Deluxe put on an incredible show in London, called The Sultan's Elephant. The show opened with a "rocket ship" crash-landing in Trafalgar Square, followed by a 20-foot-high, incredibly detailed puppet of a little girl leaving the ship and meeting her benefactor, the Sultan, who rode a 43-tonne wooden elephant that walked the streets of London, spraying its trunk.
According to a TV report I saw, more than 40 techies were busy remotecontrolling the apparatus.
Link to Video.