Most golf clubs are made from a combination of steel and titanium. This makes for a great club, but these materials are prone to rusting. Naturally, you want your clubs to look as good as they possibly can, and that means removing any rust. A simple washing in soap and water won't do the trick, but with a little time and moderate effort, it should be possible to get your clubs looking almost brand new again.
Rinse and dry your clubs to remove any surface dirt and grime.
Cut the lemons in half. Make sure you have half a lemon for each club from which you want to remove rust.
Scrub the rusty parts of each club vigorously with the lemons. Use half a lemon for each club. Allow the lemon juice to dry into the club overnight.
Rinse each club thoroughly in warm water the next day to remove all of the lemon juice.
Fill the sink or tub with 2 gallons of warm water and add the 2-liter bottle of cola to the water. Use your scrub brush to vigorously clean all of the rusty areas with the cola-water. Pay special attention to the club's sweet spot and to any grooves where rust might hide. Leave the clubs in the cola-water overnight. Soak towels with the cola-water and wrap them around any exposed parts of the clubs, and soak overnight.
Drain the sink or tub the next day and rinse off all the cola-water from your clubs. Dry each club thoroughly with a dry towel.
Polish each club with the metal polish and a clean cloth. Polish in a circular motion, then buff each club until it shines.