Thanks to Ninja Rock90 for this tip!
So...a good way to make some good money is to make flax into bowstring. If you are a member, look at the city that is south west of Seer's Village (Camelot). Then, look a little west and then there will be a fenced off area (the fence appears in white on the map). The one side says beehives, and the other says flax. The one that says flax is the one you want to go to. Go there and pick some flax. Then, go to a spinning wheel and spin it into bowstring. Then, just go around saying selling bowstring. Some people should buy it from you for a decent amount of money.