I saw this on my LSQ's facebook page. I only used a jelly roll that had 24 pieces - wanted to see how well it worked first.
Of course I missed the step that said to miter the ends and I sewed them straight and I didn't mix up my pieces well enough so some of them are right next to each other....
The length is perfect the width is too small using only 24 pieces but I can add a border and make it wider. Had fun doing it and it only took 40 minutes....
http://www.youtube.com/watch?v=gETP14z515Q