Hi QuiltingG. It's been a long time since I've made one of these. But I don't remember having a lot of scraps left over. I actually made one of these from scrap pieces. Just keep sewing fabric strips together with the necessary width until you get the length that's needed. I think this is a great technique to use up scrap fabric.
And here's a tip for finishing off the binding:
When you're done with the quilt, cut 8 2" strips the length of the quilt. Put 4 of these strips on one side (2 on botton; 2 on top) and sew them on the same the same way you did all the other pieces of the quilt--no batting--just 4 strips on each side. Press to the outside. Now tack that down with either just a running stitch (definitely double sticth that one) or any decorative stitch you want to use---just where you feel that last seam stops--believe me you will feel it.. Now cut 8 2" strips the new width of the quilt and repeat the above instructions. Now clip all the way around like you would in a rag quilt. Wash and done.