As the name suggests, the " Tawara-mon" is a palmistry in which several vertical lines resembling rice bales appear on the inside of the fingers. I think it is safe to say that you are a rich man's palm since you are never short of money.
I have met a woman once who has a Tawara-mon on her little finger.
According to her, she said, "I have certainly never had any trouble with money.