I have never heard of sewing several small quilts together so that you can sub-cut them again. Why not just cut the ones you have into pieces and add binding to each smaller piece? Or frame them for wall hangings? Even if you do try to put them together, not everyone is going to get a piece of all the quilts. If the goal is to have everyone have a little bit of each one, then figure out a pleasing pattern that can be glued or sewn to a backing piece and frame them for wall art. You could make pie shaped pieces or 9 patches or just what ever your artistic mind can create. You could use a shadow box to protect the pieces from dust, but you need to protect them from too much light too.