What are at least 8 items/objects that represent this book?

Auggie's astronaut helmet represents his insecurity.

Star Wars is representative of Auggie's childhood.

For Via, the universe represents family.

Daisy respresents the love and loyalty of family.

One object is the Padawan braid. It is important because when he cut it off, that signifies that he was growing up by going from homeschool to real school.