Sauce:
In a medium bowl, combine barbecue sauce, cup soy sauce, pineapple juice, brown sugar, rice vinegar, salt + pepper, and toasted sesame oil; whisk well.
Skewers:
Wrap bacon pieces over all the chicken cubes. Thread kabobs by alternating the bacon wrapped chicken, pineapple, onion, peppers, and zucchini on skewers.
Coat skewers evenly with half the sauce.
Brush grill pan or grates with olive oil. Grill the skewers for 5 minutes. Turn skewers over and coat with the remaining ¼ cup of marinade. Grill for a further 4 minutes, or until the chicken is cooked through and the internal temperature of the chicken reaches 165 degrees F. Serve immediately. Enjoy!
Tip:
~If using wooden skewers, soak for half an hour before cooking.