Erika Barcott's Tree Sweater.

From the website:

Outside our building is a sorry little sidewalk tree. At the height of summer, it had about five leaves. A dead glowstick has been dangling from its branches for three months.

Tonight while I was out on a smoke break, I looked at the tree and thought, “Man, that is one sad tree. It looks cold and wet and pathetic. It needs a sweater!”

I went home and whipped one up, it only took an hour and a half to knit. Then another fifteen minutes or so, standing outside in the cold at half past midnight, stitching it up.

Link with pattern (via Make: Blog)