Clothes and dolls.
There is some custom that, if a boy is dressed like a girl and a girl is dressed like a boy, the boy and the girl will grow up strong.
They say it is meant to cheat the God’s eyes.
There is another way, which is to give a girl doll to a boy and a boy doll to a girl, instead of having them dressed like the opposite gender.
Also, there is another custom that, if you give a doll to a newborn baby, the doll
will take whatever bad happening to the baby on behalf of the baby.
They say, if you give a boy/girl a doll or clothes of the opposite gender until he/she turns three (seven), this will work well.
Next good luck spell 『Good luck spell to regulate your health condition.』