I've got the perfect thing! It will just take a little effort to collect all the pieces to make it just right. If your neice loves pink, then this is going to knock her socks off.
Buy the book "Pinkalicious" the author's last name is Kann. The book is about a little girl who eats so many pink cupcakes that she turns pink and has to eat veggies to turn back to normal. To put together a fun gift:
Buy a pink bowl (at Target's Dollar Spot right now for 50 cents)
Buy Easy Bake Essential's baking kit (includes spatula and the works) this is also on clearance at Target right now too.
Buy a pink cake mix, pink frosting, sprinkles (at Target's dollar spot for 50 cents) and some cupcake liners.
You can add more if you want, but the book itself will probably cost ya $10.
Hope that helps!!! I am doing this for my niece who is turning 3 and also for the little girl down the street who is turning 3.