Choosing a Title of the Blessed Mother as Patroness

[Ptochos]

How do religious communities or individuals choose a particular title of the Blessed Mother as their patroness? There are lots of lists of other saints' patronage but the Blessed Mother is pretty patroness of everything, everywhere, and everyone. So say you wanted to choose a feast for consecration to Mary, do you just choose the closest feast that you have time to do the preparation for or do you wait for a feast that has more meaning for you?

[Credidi Propter]

If it's a religious community, the founder chooses it. If it's a religious brother or sister, there may be variations among religious communities as to the specifics of the procedure, but generally they submit a few names that they like and the superior chooses a name for them from them.