One that I would like to try is where you get a scenic photograph, cut it into fourths/eighthes or what ever fraction for the number of ladies involved. Give each lady one of the pieces of the photo,. they make a quilt block that matches their piece of the pie (everyone does same size block) then when all are done, you put them together to make one big quilt. No one will see the whole original photo until all the blocks are done. I have seen some amazing ones like this at quilt shows