Thoroughly combine molasses and mustard in a bowl. Gradually stir in vinegar, Worcestershire sauce, and TABASCO® Sauce and mix well. Add ham cubes and toss well; cover and refrigerate 1 hour.
Thread ham and pineapple alternately on skewers and brush with sauce. Place on grill about 4 inches from heat. Grill 20 minutes, turning occasionally and brushing with sauce. Heat remaining sauce and serve with kabobs.
Makes 6 servings.