My neighbor loves to try new plants, no matter how weird or difficult to grow in our area. This is a cucuzzi gourd from his garden. He harvested one fruit that was 4.5 ft. long! One gourd can feed our entire block.
I read that some Italian growers train the vines to grow along tree branches so that the fruit will hang down for convenient harvest. They can be prepared and eaten as a summer squash when young. I sliced this one and fried it with garlic. Delicious.