Hoarding is a deeply emotional problem. If it is a matter of her not giving up the product of her labor, then that is one thing. Perhaps a talk about why she keeps them and how she might sell them and be proud that her work not only earned money for the family, but allowed someone else to carry her work throughout the world, would relieve the problem. If she is hoarding ad nauseum, even items of no value to anyone, then perhaps it is time to hire a specialist or a psychologist, as it is more than likely the result of a traumatic psychological shift that could result in further detrimental hoarding for the rest of the family. In my opinion, however, so long as the collection of items do not impede the day-to-day routine of a human, than it is just a mess and could use some spring cleaning.