Peel shrimp, leaving tails intact, and devein. Combine olive oil
and remaining ingredients; pour over shrimp and scallops. Cover and
refrigerate 1 hour, stirring occasionally.
Remove shrimp and scallops from marinade, discarding marinade.
Alternatre shrimp and scallops on 10 (14-inch) skewers; grill,
uncovered, over medium coals (300 to 350 degrees F) 8 to 10 minutes
on each side.

Note: Cooking times may vary according to size of shrimp and
scallops. They may be cooked on separate skewers to control the
degree of doneness, if desired. Sea scallops are large (about 2
inches in diameter); bay scallops are about the size of a nickle.

From Jade and Charlie McCulloch of Texas in September, 1992 "Southern
Living" Typos by Jeff Pruett