It is a really quick little project and you can either use fiberfill or take some stuffing out of an old pillow.
Step 1: find a super cute sweater or t-shirt you cannot bear to part with.
Step 2: cut off sleeves, neckline and waistband
Step 3: pin the right sides together and sew around 3 3/4 sides, leaving a 2 inch opening
Step 4: turn the pillow right side out and stuff with filling and then blind stitch the 2 inch opening.
photo edit done with Beautiful Mess App