I like all the ideas above. Our guild had a mystery bag, whereby everyone who wanted to join in, brought small pieces of fabric (nothing larger than a fat eighth) in their sack. You have your name inside the bag. Everyone took home a bag and had six months to make something out of the scraps in the bag and give it to the orginial owner of the bag. I put Halloween fabrics in my bag and received the neatest Halloween Wall hanging. (by the way, the project only had to have the top done - you finished it off yourself.)