A battlepass-like plugin for Smulbeana's Minecraft Server, mc.smulbeana.net
You can see the bean pass menu and features in action in this trailer: https://www.youtube.com/watch?v=ih_Lb1agug8
NOTE: This code was specifically made for this server and not for public use (so it's not generalized) but if someone want to fork it for their own project go ahead! I'm releasing the code now about half a year later since I am no longer working on this server.