Jumper for a tree!
Dressed by a group called "Phantom Knitters".
Totally mad, of course, and no-one but an Englishwoman would contemplate it - or would they?
My stepdaughter organized a "Railing Wrap" where anyone could weave strips of cloth through the iron railings around the town. Some people wrote messages on strips of sheeting, others used scarves or fabric torn from garments. Some wraps were done publicly, some clandestinely, and my SD photographed them all.
See her website "Unmade in England" which concentrates on recycling fabric for art.