Marinate the pork: Place the chopped country-style pork ribs in a container. Add the canned (undrained) crushed pineapple, brown sugar, and balsamic vinegar. Stir well, cover, and refrigerate—ideally overnight, or for several hours at minimum.
Prep the fruit: Core and cut a fresh pineapple into chunks. Peel and slice three mangoes. Reserve ⅓ of the mangoes to later make the glaze.
Skewer it: Alternate pieces of marinated pork with fresh pineapple and mango chunks on skewers. Use metal skewers or, if using bamboo, soak them in water beforehand to avoid burning.
Grill: Preheat your grill. Place the kabobs on the hot grill and cook, turning occasionally. Grill for about 10 minutes per side, but adjust as needed based on grill temperature and kabob thickness.
Make the glaze: In a blender or food processor, puree the reserved mango with ½ cup water. Transfer to a saucepan with ½ cup brown sugar. Bring to a boil, then reduce heat and simmer for 5–7 minutes. Remove from heat and stir in ½ teaspoon ground ginger.
Glaze while grilling: During grilling, brush the kabobs with the mango brown sugar glaze. Continue cooking until the pork is done to your liking (and no longer pink inside), with charred edges and caramelized sweetness from the glaze.
Serve: You can serve each kebab directly on the skewer, or slide the ingredients off onto a platter. This lets guests mix and match meat and fruit—great if you've got picky eaters or just want a shared, platter-style presentation.