here's what me and Jacopo did yesterday: a little birdhouse. we built it and paint it afterwards.
in the north everyone has at least one birdhouse per garden. it was a pleasure for the eyes to see those lovely birds rest to get food and water. once we even saw a whole group of little red birdhouses called "birds hotel". it was heart-warming.
*in milano people want to get rid of birds: they even sell poison against them. I think that somebody who doesn't like birds is a bad person.