This was a "fad" out here about a year or so ago. You would actually have to give a dollar bill (or a higher denomination for those that were just simply fabulous
) to the nail tech. He or she would cut it up/shred it, and that would be used for your $$ money tip. Yes, ladies, I have seen all fingers and toes done too.
Now, the different color "french tips" are in where you might have say silver nails with black tips for example.