Happy Mouth Mullen Combination Hackamore Happy Mouth Mullen Combination Hackamore £82.00 metric size: [Choose]14.513.5 Quantity: at £82.00 each Add To Basket New for 2018. The cheeks on the Combination Hackamore have been upgraded and strengthened. Please note at present the bits are coming through without a bottom bar. New to Happy Mouth is the Combination Hackamore complete with a leather back strap and bit rubbers. Combining nose pressure and leveridge. Apple scented soft mouthpiece, non toxic, steel centre. Please Note: These type of mouthpieces are not suitable for all horses. Care must be taken so that the bit is correctly fitted and the horse's teeth and mouth are in good condition.