Herbal enhancement? Is it possible?

I feel a little silly asking this, because I'm sure I know the answer, but is there anyone out there who has actually experienced a noticeable increase in size after using any type of herbal enhancement pills, such as saw palmetto, etc? Or are there any exercises that have actually worked for people? (You know the kind - standing in front of a mirror, pressing your fingertips together, and chanting, "I must, I must, I must increase my bust!" LOL) If yes, I want details (cup size, age, outside factors, etc) plz!