Stuffing sausages with a KitchenAid mixer, the grinder attachment, and the sausage stuffer attachment-to-the-attachment, is a two-person job. One person needs to keep the casing flowing at the right rate, while the other person pushes ground meat into the hopper.
Note the plastic containers labeled "hog casing" in the background. I was able to get the casings off the shelf in the meat department of Moon's Grocery, Greensboro, Ga. Bobby Fries would have sold them to me, too, but in much larger quantities. This way I got exactly what we needed for less than $6.