If you have an acrylic vanity top that has been scratched, there are a few ways that you can try to remove the scratches. First, you can try using a mild abrasive cleaner like Ajax or Comet. You will want to use a soft cloth and rub the cleaner in a circular motion over the scratch. If this doesn't work, you can try using a fine grit sandpaper. Rub the sandpaper over the scratch in a circular motion until it is no longer visible. If all else fails, you can always call a professional to have the scratch repaired.