Could add a mini farm that you could plant seeds that generated jewelry or essences of gold, began with 3 spaces to be able to plant the seeds and then bought item with glintstone tokens or newspapers to increase the space of production. And to drop the seeds could be in all tombs and kraken mines, so that they would serve well and players would not suffer from the lack of gold.
You could add donation to the guild and so the guild would evolve. Add a Guild House and with the donation the master could add customizable objects in it .. I hope my opinion is heard