OOOOOO be careful using sawdust for items in the house. From my experience making cloth doll, you must sterilize the dust by baking 200 degrees for about 45 min to one hour. There could be critters still in the dust and you will give access to house by using unsterile dust. Good idea though for stuffing. I prefer little plastic beads. They come in bags and are the same as those used in "beanies"