A bee I belonged to did a "brown bag" exchange. We placed fabrics in a brown paper grocery baf, then all the bags were placed on a table and mixed up. Then we each drew a number and in numerical order selected a bag from the group. We all looked in the bag, just to make sure we didn't get our own bag. We decided on a minimum and maximum size to make, then we had one month to make a top with the fabrics in the bag. Choice of pattern was ours, but we couldn't add any fabrics from our stash, and we had to use all of the fabrics in the bag at least once. At the next meeting, we drew numbers again, then the person with number 1 first showed the fabric from her bag and we would find out who owned it. Then she would show the top she made, and give it and the rest of the fabric back to the owner. So we each got a new quilt top made by a friend.