Shadowfax EAU CLAIRE, Wis. — A horse that appeared in the ‘‘Lord of the Rings’’ movie trilogy will make an appearance next weekend in western Wisconsin. Blanco — better known as Shadowfax from the movies — will appear with current trainer Cynthia Royal next Friday through Sunday during a clinic at Merrimount Morgans Stable between Holcombe and Cornell. Blanco, a trick horse, is known for his ability to work without restraint and to respond to vocal and visual cues. Blanco is an Australian Andalusian gelding and was bred in Australia. ‘Lord of the Rings’ horse Shadowfax coming to Wisconsin