Making barbecue skewers is simple and fun! Just follow these steps:

1. Prepare the Marinade: In a bowl, whisk together the olive oil, soy sauce, honey, lemon juice, garlic powder, paprika, salt, and pepper.
2. Marinate the Proteins: Divide the marinade into two bowls. In one bowl, add the chicken and beef, ensuring they are well-coated. In the second bowl, add the shrimp. Allow them to marinate for at least 30 minutes.
3. Preheat the Grill: While the proteins are marinating, preheat your grill to medium-high heat.
4. Prepare the Skewers: Thread the marinated chicken and beef onto skewers, alternating with pieces of bell peppers, onions, zucchini, and cherry tomatoes.
5. Grill the Skewers: Place the skewers on the grill and cook for 10-15 minutes, turning occasionally, until the meat is cooked through and the vegetables are tender.
6. Add the Shrimp: In the last few minutes of grilling, add the shrimp skewers to the grill. Cook for 3-4 minutes, or until the shrimp are pink and opaque.
7. Check for Doneness: Ensure that the chicken reaches an internal temperature of 165°F (75°C) and the beef is cooked to your desired doneness.
8. Remove from Grill: Once cooked, remove the skewers from the grill and let them rest for a few minutes.
9. Serve and Enjoy: Arrange the skewers on a serving platter, ready to impress your guests!