The purse itself would be pink and fluffy.
Just in case Fred and George spray fireworks at her again, she would pack an emergency outfit in her purse.
To track the progress of her students, she would keep a notebook with kittens on it inside her purse.
In case she needed to write down some new Magical Decrees, she would keep a pink quill and pink parchment in her purse.
To call the Ministy of Magic, she would have a pink phone with white hearts on it inside her purse.