Yarn bombing in the village of Gurnard, England © Kuki Waterstone/Alamy
Yarn bombing–also called guerilla knitting, yarnstorming, or kniffiti–brings a warm and fuzzy bent to modern street art. Artists use knitted materials to cover outdoor fixtures such as lamp posts, park benches, and manhole covers–often anonymously. This knitted ‘fungus’ is on a tree in Gurnard, a village on the Isle of Wight.