A couple of weeks ago I proposed one day a month in which we could get together, chat, listen to music and make things that we could buy from China for a fraction of the cost. In response, I pretty much got an even split between Friday and Sunday. The only possible solution is to do both. (I know, I make many sacrifices.)
My first suggestion (open to objections) is the first Sunday of the month and the Friday 2 weeks after. Nominal time frame of 10am - 2pm? What do you think?
Update: Choosing the October long weekend was possibly not my most brilliant moment. How about the last Sunday in the month?