Slice the string cheese sticks into chunks. In a small bowl mix together the eggs and water. In a medium bowl or pie dish mix together the breadcrumbs and garlic powder. In a large heavy saucepan heat the oil to 365 degrees (you can also use a deep fryer).
One at a time, coat each mozzarella piece first in the flour mixture, then in the egg mixture, and then roll in the breadcrumbs. Repeat until all of the cheese stick pieces are coated.
Place into the hot oil and deep fry in batches at 365 degrees until golden brown, about 30 seconds. Drain on paper towels. Serve with marinara sauce on the side.