The canister appears in the background in the scene where Ally makes the grilled cheese.
Ray tells Marie "She's not Snow White" and Robert corrects him with Cinderella. Ray and Robert compare Ally to Snow White and Cinderella who are two Walt Disney Characters. Snow White takes care of the Seven Dwarfs and also cooks and cleans their house and falls in love with Prince Charming. Cinderella was a princess who lives in a castle and has to cook and clean for the evil stepmother and stepsisters. She goes to the Royal Ball and the prince falls in love with her and they spend time together. ETM