Money trees, in its native, natural habitat grow with normal trunks. Braiding of the stems in the modern ornamental money trees that you see often takes place in nurseries where cultivators braid the young tree trunks till it takes a sturdy, woody form. This is typically a slow process that takes time and patience and recommended best done by floral and plant experts.
So, as an easy recommendation, its best suggested to buy them from your local sources available or may be search them online from a trusted source like Thursd to know which of your nearest florist shops has this botanical wonder in their floral arsenal!