I would've never thought of it, glad someone did. Fall pillows made from inexpensive placemats from Walmart. Rip seam open a little, stuff them, and sew up edge. Not sure I'd make fall leaf pillows, but this same idea could work on other placemat shapes.
I Love and do all these activities, especially baking apple and pumpkin goods and drinking Starbucks' pumpkin spice latte. I love every thing about Autumn Except Maybe the cold weather. the best things in autumn.