When we were back in the states last, we had some good picnics (congregation rented a pavillion in park) but that was about 2004. At our house more recently in Poland, we invited everyone to come and most did, a few elders and their families did not (probably home studying WT for next day) but a few did - the younger elders. We had about 70 people running around having fun. Badmitton, soccer, I showed them how to play horse-shoes. Bonfire. Of course, I was the only one drinking (necessary). Eventually they would have to sing some KM melodies (I was busy cleaning up).
Since I have faded, we haven't done it again. Too bad for the children. Must suck to get to be a child, once a year at a faders's BBQ.