Giant metal orbs with wings and large eyes appeared in London last year. These were designed to deter illegal parking, according to the article by Londonist (1). Twenty-two of these have appeared on the street overnight in south London. The one below was photographed in Corbet Place, on top of a wall/building, off of Brick Lane. Imagine going back to see your car and seeing a giant metal orb on top of it. The orb looks like it's about to fly away with the car.
1) Aliens invade south London. http://londonist.com/2012/10/aliens-invade-south-london.php?utm_source=Londonist+Ltd+List&utm_campaign=f381a9a79e-Londonist+Daily&utm_medium=email [October 16, 2012].
The orb is by the artist D*Face, who has similar winged orb creatures in paste-up form around Shoreditch.