Here is a quick way to use fabric scraps. I found the basic directions on a site called All Free Sewing.
Cut a 9.5” by 6.25” rectangle. Fold it in half lengthwise. Stitch round the edge, leaving a one inch gap for turning. Trim and turn. Use a knitting needle or a pencil to poke out the corners.
Fill with dry rice. Tip: A funnel made from the cut off top of a plastic water bottle works well because the rice will flow more freely than through a typical kitchen funnel.
Hand sew the gap closed. Tip: A few drops of essential oil really make this more pleasant to use.
The pillow cover:
Cut an 11” by 6.25” rectangle. Tip: This is a lot easier to do with fabric that has clear right and wrong sides.
Hem the raw edges on the 6.25 sides. With right side facing, fold as follows:
Sew the sides using a quarter inch seam.