This is different than Halloween costumes. What book character costume could you help your child create? It does NOT have to cost money. If you’re not very creative, there are lots of ideas online. They can wear their costume that day and bring the book of their costume-look-alike character. It will be better if they have that book at home since we may not have enough copies of a desired book in the library, but we will help as much as possible with those that need books.