Get brown shoe polish to match the color of the furniture, or use black polish for espresso-colored furniture. If you need a specific color, you can combine different colors.
If you're worried about creating a mark with the polish, test an inconspicuous spot to see how it will react on your piece. Make sure your furniture is clean
To apply the shoe polish on the wood, grab a paper towel, wrap it around your finger, and dab a small amount of polish onto the tip. Gently rub the paper towel into the scratch.