I figured I would take a moment to inform you a bit on some of the new features that you saw with the drop party.
The bank is a system that we have put into place so the lobby can have shared inventories. The Bank tags items as they are obtained so it always knows the world in which they originated. What this allows is that you can put items in your bank, travel to the lobby and sell items at player shops all in one place so we don't have to have player owned shops across all our worlds.
Right now we're only using a small portion of its functionality. Once we move to our new lobby towards the end of this month you will need to use the /bank command to transport items to and from the lobby. Then once we get our Towny world up you can bring items from there to the lobby to sell. Items bought and sold from that world will only be able to travel back to the Towny world.
This is sort of a server achievement system. We will be passing these items out during contests, drop parties and tournaments. There is a lot of items that we've already added to this system (pets, skywars kits, money etc) and will be adding more and more things!
You can see what you've unlocked by right clicking on the villager in the lobby. You'll notice some hints of what is to come on our server :)
I am working on getting a "Server Guide" section on the website for directions on how to use our custom systems and commands!