Cook macaroni as directed on pkg. Drain; rinse with cold water.
In large bowl, combine macaroni, ham, celery, and onion. In small bowl, combine mayonnaise, lime juice, honey and cilantro; blend well. Spoon over macaroni-ham mixture; toss gently. Cover; refrigerate 45 minutes or until thoroughly chilled. Serve over melon wedges; garnish with fresh cilantro and lime peel, if desired.