A thrower includes an elongate arm. A handle is attached to one end of the arm. A retaining device has a base attached to an opposite end of the arm and at least one gripping member extending from the base to define a retention volume together with the base. The, or each, gripping member is resiliently displaceable with respect to the base to permit the retaining device to be urged on to the object to be thrown such that the, or each, gripping member is displaced to permit the object to be received in the retention volume, with the, or each, gripping member subsequently retaining the object in the retention volume.