1 1/4    pound ground ham          
1    pound ground pork
1/2    pound ground beef         
1    egg
1 1/2    cup graham cracker crumbs          
1    cup milk
2    cans tomato soup     
3/4    cup vinegar
2    cups brown sugar         
2    teaspoons dry mustard

Mix first six ingredients and roll into balls and place into baking dish. Bake 45 minutes at 350 degrees. Drain off grease. Top with sauce and bake or put in crockpot to warm. For the sauce: mix tomato soup, vinegar, brown sugar, and dry mustard.