My girls (2 and 4) love kitchen play stuff, dress-up clothes (princesses gowns, fairy wings, necklaces and bracelets, etc...) and all things from the movie Frozen. DD1 was really into Disney princess stuff at 3. For outside stuff, they do a lot of sidewalk chalk art, they love their sandbox, and they both like to help me garden. They have their own watering cans and "gardening tools." but mostly they just like digging in the dirt.
My friend's daughter is really into music so I got her a kid's microphone stand for her third birthday. I've also gotten this for a couple 3 year old girls:
DD is really into dress-up and pretend play items right now. We also recently got her a subscription to High-Five Magazine (younger version of Highlights), which we both really enjoy.
Re: Gift Ideas for 3 year old girl?
Is there anything your daughter really loves?
My Ovulation Chart
Sidewalk chalk, bubbles, maybe a sandbox with buckets and shovels.
Anything to encourage imaginary play is good.
Bubbles, trike, books, new clothes and shoes, necklaces and bracelets (from the dollar store), puzzles, stickers, hair bows, bubble bath soap.
Its only going to get harder from here when they start wanting what their friends have.