Yarn bombing takes that most matronly craft (knitting) and that most maternal of gestures (wrapping something cold in a warm blanket) and transfers it to the concrete and steel wilds of the urban streetscape. Hydrants, lampposts, mailboxes, bicycles, cars — even objects as big as buses and bridges — have all been bombed in recent years, ever so softly and usually at night.
It is a global phenomenon, with yarn bombers taking their brightly colored fuzzy work to Europe, Asia and beyond. In Paris, a yarn culprit has filled sidewalk cracks with colorful knots of yarn. In Denver, a group called Ladies Fancywork Society has crocheted tree trunks, park benches and public telephones. Seattle has the YarnCore collective (“Hardcore Chicks With Sharp Sticks”) and Stockholm has the knit crew Masquerade. In London, Knit the City has “yarnstormed” fountains and fences. And in Melbourne, Australia, a woman known as Bali conjures up cozies for bike racks and bus stops.
[Yarnbomber Leanne Prain] once tried to yarn bomb a sign post in Washington, in front of F.B.I. headquarters. A security guard wearing a bulletproof vest approached her, she said, and demanded that she stop immediately. “Ma’am,” she recalled him saying, “step away with the knitting.”