I was at the Lowell Quilt Festival a few weeks ago and saw a demo on using scrap batting.
I haven't tried it yet, but I'll do my best to describe!
They had 'Batting Seam Tape' a fusible seam tape that is 1.5 in wide in 10 yd rolls.
then they cut the batting into 2.5 in strips, and cut scrap fabric into 2.5in strips, wr side to batting, fold like double fold bias tape, and sew (str stitch) down the middle.
Then cut to a desired length, and zigzag the sewn strips tog. The samples they had were made up into mug rugs, a lot of 'mug rugs' sewn tog to make a bathroom rug (alternating direction of strips), placemats and many other items.
Hope this gives you ideas!!
Carolyn