You should be able to find them in most tack shops. I have two of them which were both bought both from Fox saddlery. My dads just added you can get them in Countrywide too
I can find a 5" jointed Rugby Pelham everywhere, but not in a happy mouth. The Fox ones are Korsteel which is not a happy mouth (unless I am reading it wrong which I promise you is entirely possible!)
Ive seen the happy mouth in a pelham but not in a rugby pelham. Could you not try putting a latex bandage over the mouth piece of a stainless steel one. Just a thought, although not ideal.
May have to do that Louby. I just can't believe that we can't find one off the shelf! Surely we can't be the only people in the whole world who want a happy mouth, jointed rugby pelham?