My cousin is 7 I don't know what to get for her for Christmas.
a cool toy
You said she is a girl, so you can buy her dolls or play dough, something like that!
Gift cards are always good, she can get what she wants just put it in a stuffed stocking or gift bowl that way you look good either way and she is surprised not once but twice.JaimeJ1968
An article of clothing, pink, sparkly and cool.