On a skewer place the following,1 quartered peach, 1 onion quartered, 1 piece of green, or red bell pepper and a shrimp. Now again add piece of bell pepper, onion, shrimp and finish up with a peach quartered.
Repeat on each skewer.In a blender, pur'ee the first four ingredients for the marinade. Pour the mixture into a casserole dish and add the remaining ingredients mixing well. Place the skewers in the dish making sure they are very well coated with the marinade. Cover with plastic wrap for at least 2 hours.
Cook on grill using medium heat for 5 minutes turning so they are evenly browned.