Cut each chicken breast lengthwise into 4 strips – a total of 16 strips. Combine cranberry juice, orange juice, tequila and 1 teaspoon of the Sriracha, blending well. Add chicken strips, coating well; let marinate for at least an hour or as long as 4 hours in the refrigerator. (If using bamboo skewers, soak them in warm water for at least 30 minutes prior to use.) Heat gas grill to high, or make a medium-hot fire in a charcoal grill. Oil grill grate. Drain chicken, discarding marinade. Thread 1 chicken strip onto each of 16 (8-inch) skewers. Place chicken on grill; cook on one side until wellbrowned, about 4-5 minutes; turn and grill until the other side is browned (about 3-4 minutes longer),baste chicken with your favorite sauce. Remove skewers from grill; sprinkle as desired with salt and freshly ground black pepper.