Quite a coincidence that today's veg is that marrow. Each Saturday when Helena and I are in UK and we have a glut in our veg patch, with our neighbour Laurie down the lane we set up a stall for anyone to take what they want, for free. Today's crop is a bit "mediterranean", as besides the marrows/courgettes (and the flowers) there's not just spinach, Swiss chard, corn on the cob and parsley, there's basil, aubergines/egg plants, peppers and even melons.
(One day when we've more time we'd like to try expanding the idea among all those other people who might have surplus produce, with a "freshandfree" website where anyone could put in their post code and a map would come up with their closest Fresh & Free stall...)