Yarn bomb!

According to the New York Times, a new phenomenon is taking over the world - yarn bombing, people!

Also known as grandma graffiti, yarn bombing takes the traditional craft (still associated with old grannies) of knitting and the most maternal of gestures (wrapping something cold in a warm blanket) and transfers it to the concrete and steel structures of the urban landscape. Look out in a city near you - yarn bombers are taking their brightly coloured and fuzzy work to Europe, Asia and beyond.

[Image taken from New York Times website]