A member of the Hearts n Hands quilt guild in O'Fallon, IL offered this suggestion for using all of those left over batting pieces. She makes mattress covers.
How will I work this. Cut batting into 6 x 6 segments and place between 2 pieces (same size) muslin, then stitch around the block and across the block. Prepare next block and slip 1st block inside this piece and top stitch. Continue..
Seems like a good day by day project.
What do you do with your left over batting.