let 5-year old girl choose a gift for herself ?

My 5-year old daughter will have birthday soon. I thought maybe I'd
take her to the shopping mall to let her choose the gift for herself,
maybe she'll want something completely different than another standard
doll that I might choose myself for her. But I have my doubts.

I have doubts about taking her to the mall because I'm afraid she'll
become spoiled, "consumeristic" and will demand more purchases.

She loves very much to pick and select things for herself, but so far
we bought together only small things like snacks and color pens.

What do you think about idea to take her with me to let her select for
herself the more expensive gift for her 5th birthday, under my
guidance in the mall ?

YL