In A 3-Qt. Slow Cooker, Combine The Sausages. In A Small Bowl, Whisk The Barbecue Sauce, Marmalade, Mustard And Allspice. Pour Over Sausage Mixture; Stir To Coat. Cover And Cook On High For 2-1/2 To 3 Hours Or Until Heated Through. Stir In Pineapple. Serve With Toothpicks.