Here are some images from the Third International Yarnbombing Day in the San Francisco Bay Area.
For the un-informed yet curious… yarn bombing is guerilla knitting, or street art that employs colorful displays of knitted or crocheted yarn, rather than spray paint or chalk. First appearing in 2004 in the Netherlands, yarn bombing has now become an outsider art phenomenon known to fiber enthusiasts around the world. In June 2011, Joann Matvichuk began International Yarn Bombing Day (IYBD) in Alberta, Canada. This year IYBD was held June 1 – June 8, 2013.