What's your little girl into?
What have you already got her?
Books are always fab - You Choose is a favourite, or the new one by Nick Sharratt- christmas fancy dress.
My 3yo loves spiderman, Cars (film), monsters inc, ben and holly's little kingdom and peppa pig.
Maybe a film? Or dress-up outfits? If sge does like dressing up and you don,t already have a main present, then a cheap wooden chest, some long pieces of fabric, a sword and shield, short black trousers, a waistcoat, a bandana, tiara, shiny fabric, hats, any manner of random pieces of clothing, would make a fantastic starter kit for a dressing-up box