A Hogwarts school uniform dress. This is a classic Harry Potter costume, and it’s easy to find at most costume stores. You can find dresses in the Gryffindor, Hufflepuff, Ravenclaw, and Slytherin colors.
A dress inspired by one of the Harry Potter houses. You can find dresses with the colors and symbols of each of the four houses. For example, a Gryffindor dress might be red and gold, while a Hufflepuff dress might be yellow and black.
A dress with a Harry Potter print. There are many different Harry Potter prints available, so you can find a dress that matches your child’s favorite character or scene.
Accessories. There are many different Harry Potter accessories available, so you can really customize your child’s costume. Some popular accessories include wands, scarves, ties, and robes.