"Yarn bombing is a type of graffiti or street art that employs colourful displays of knitted or
crocheted yarn or fibre rather than paint or chalk."
"Yarn bombing examples have been recorded as early as May 2004 in Den Helder,
Netherlands. In the U.S., in 2005 Texas knitters used their leftover and unfinished knitted
projects, but it has since spread worldwide with custom pieces being created by artists.
The start of this movement has been attributed to Magda Sayeg, 37, from Houston, who
says she first got the idea in the 2005 when she covered the door handle of her boutique
with a custom made cozy."
International Yarn Bombing Day - 8th June 2013