What to do:

Cube chicken into ½” cubes; set aside
Shrimp should be peeled and deveined, set aside
Cut both peppers into ½” cubes; set aside
Cut red onion into ½” cubes; set aside
Assemble Brochettes by placing on 1 skewer the following: 2 shrimp, 4 pieces of pepper, 2 pieces of chicken, and 2 pieces of red onion assembling the pieces alternately to show contrast of colors
Place completed skewers in a pan to marinate and pan will capture marinade that rolls off skewer
Pour marinade over brochettes
Marinade to your own liking; at least ½ hour (30 min)
Place skewer on a pre-heated grill or place in an oven at 350°F
Cook until chicken reads 160°F internal temperature
Place cooked Brochettes on a platter and serve