Sparklers would be a cool example of life for this project. Again, an awesome mood is set by it's own light. And everything els could be edited to be dimmer to draw out the rich color and light of the sparkler.
The hearth and the Salamander can also mean happiness and if Montag chose to be happy or not. The two things in his life his home and his work. Did it really make him happy. He chose happiness over this home and his work by reading the books.