Personalized Golf Balls

My dad, before he retired, he worked at a golf club. He was just a general worker. During his free time, he will hunt for lost golf balls, bring them home, clean them up and sell them to golfers. I love looking at the golf balls because they come in colours and different printing. I am sure some of the golfers bought them at GolfBox.com for personalized golf balls. Unfortunately, my dad didn't allow me to help clean it. He has his own way of cleaning them so that the will still look brand new and the balls can fetch a higher price.