Give her a custom crystal display table. Girls of this age may like this gift very much, but they may not know how to preserve it, so the task of preserving the gift will be left to you. When your sister grows up and sees this gift again, you should know how happy she is. I think you will feel that this gift is good.
Little girls love to play, which is natural. Naughty little girls generally like to try different roles. Why not let her be a ghost for Halloween? She must be looking forward to it. Prepare props for her, which is also a gift for her. Let her dress herself up well, and it will be good to go to the party. It is similar to a costume party, which must be very interesting, but you have to keep an eye on her and don't let her get lost.
For a girl who loves to play, give her various fun games, a set of better game consoles, but also stipulate that she can't play for too long. She will like this gift.