BBQ Ham Sandwiches (No BBQ Sauce Needed!) (Slow Cooker)

2 lbs. thin sliced deli ham
1 cup water
1 cup ketchup
1/4 cup brown sugar
1/4 cup worcestershire sauce
2 tbs white vinegar
2 tsp prepared mustard
hamburger buns

Directions:

1. Place ham in a greased 3 qt slow cooker
2. Mix rest of ingredients (except buns of course!)
3. Pour mixture over ham and stir well.
4. Cover and cook on low for 4-5 hours, until heated through.
5. Put on buns and your done! YAY!