“Also my wife knows someone named Shira who Reb Chaim shlit”a told to add or change (im no sure which) their name. And he told them to make a kiddush when they do so.”
Reb Chaim K never made a kiddush for any of daughters. Neither did the Steipler. I find it hard to believe.
JayMatt19: Does the sefer discuss changing names once a name been given?