I have participated in two. There are usually some instructions that travel with the item. It will state what you are supposed to add. Typically the first person provides a center either pieced or appliqued and then the next person is supposed to add a border using a particular techinque. The instructions should include sizes and or color suggestions to use etc. The first one I participated in we had to start all over because the unfinished piece was stolen from the car of the girl who had it that week. If I think of it I will try and post a picture of the finished product.