Abstract: A device for retaining a training object in a dog's mouth and a method for its use for training a dog to carry an object such as a small game animal or bird. An adjustable halter fits about the dog's head and includes retainer straps extending on each side of the dog's muzzle to be attached to an object such as a training dummy to be held in the dog's mouth. A belt may be placed around the dog's chest with a restraining strap extending from the belt and between the dog's front legs to the halter, to keep the dog's head down.