Place the supplies on a work surface near the wooden wall. It is important to apply the wax while it is hot to mold it into the scratch well.
Heat the wax stick or crayon with a candle flame, hot patch knife or similar type of heat source.
Catch the wax stick drips with your flexible metal spatula or a butter knife. Immediately rub the hot wax into the scratch on the wall.
Work the wax into the scratched area well with the spatula or knife.
Add more hot wax if necessary to fill in the scratch. Smooth the surface of the wax so it is even with the wood.
Scrape off any excess or bumpy wax with a razor blade edge until it is smooth.
Dip a cotton swab into cream shoe polish that closely matches the wood
Rub the shoe polish into the scratch, going with the grain of the wood.
Buff the polish with a soft, lint-free cleaning cloth. Step away from the wall to inspect the wood and check on the visibility of the scratch. Repeat the method until the scratch is no longer visible.