We are cutting them all up in 1 1/2 x 3 1/2 inch rectangles and then sewing them on adding machine paper like some one showed on this board.
String Piecing on adding machine paper
http://www.quiltingboard.com/t-56940-1.htm
Also the trimmings left from that can be used for
fabric from the garbage bag
http://www.quiltingboard.com/t-58917-1.htm
After that I do not think much would be left.