Creating amazing barbecue skewers is simple if you follow these steps:

1. Soak Wooden Skewers: If using wooden skewers, soak them in water for at least 30 minutes to prevent burning on the grill.
2. Prepare Marinade: In a bowl, whisk together olive oil, soy sauce, honey, minced garlic, black pepper, paprika, oregano, and salt.
3. Marinate Chicken: Place chicken cubes in a resealable bag or bowl and pour half of the marinade over them. Seal and refrigerate for at least 30 minutes.
4. Marinate Shrimp: In another bowl, add shrimp and the remaining marinade. Let it sit in the refrigerator for about 15 minutes.
5. Prep Vegetables: While the meats are marinating, cut the bell pepper, zucchini, red onion, and prepare the cherry tomatoes.
6. Assemble Skewers: Begin layering the skewers. Start with a piece of chicken, followed by a bell pepper, then a zucchini slice, and continue alternating until the skewer is filled. For shrimp skewers, thread shrimp and cherry tomatoes alternately.
7. Preheat Grill: Heat your grill to medium-high heat.
8. Grill Skewers: Place the assembled skewers on the grill. Cook for about 15-20 minutes, turning occasionally until the chicken is cooked through and the shrimp are opaque.
9. Check for Doneness: Ensure that chicken reaches an internal temperature of 165°F (75°C) and shrimp are cooked through.
10. Remove and Serve: Once cooked, remove the skewers from the grill and let them rest for a few minutes before serving.

These steps will guide you in creating delicious barbecue skewers that are sure to impress.