Nojj is a weaponsmith. If you give Nojj the required amount of crafting materials, and pay Nojj a fee in gold, Nojj will craft you one of the weapons from his "menu". Also, for a fee of 10 gold Nojj can customize a weapon for you. This will increase its damage by 20%, but means that no character other than the one it is customized for can use that weapon.