In a round robin I did the center block and then turned it in to the coordinator at our guild.Every month she gave us a bag with a top in it. We added a row around and supplied the material to do it. Then we returned it to the coordinator and at the end of the meeting we got another bag. At our meeting this month we received our own bag back. We are then able to complete it. I hope to get mine done and finished for our quilt show in May. Some of the blocks I received were a challenge but my hubby helped me to figure on what to add. Sorry somehow I posted this in two different spots.