Since the meso limit for maplestory is 2.147 billion, to earn more meso, we can make a money system that enables users to earn more than 2bil. We can make an npc or command that can exchange 2bil for an item (better to be an etc item) that cannot be dropped by any monsters and the item can then be used like coupons to exchange godly or cool stuff that cannot be obtained by monster drops.