This is an ideal mod for a server with mods and plugin you can use this currency to create a custom trade with npc.
Recipe:
You can modify the design of the coin within the file
path: [ldtd]+CraftCoin.jar\assets\ladicktadura\textures\items
This mod must be installed on both the server and the client for it to work correctly.
There is also a non-craftable version you can find here
