Probably Roald Dahl's most emulated World Book Day character is Matilda - the little girl with special powers and a love of books. And you don't need much to make it work. A denim dress ...

Looking for easy, last-minute costume ideas for World Book Day ... character from CBBC - Tracy Beaker, from Jacqueline Wilson's series of books all about a feisty and kind-hearted girl in care.