You can create RandomBlocks - blocks, that can open RandomBox gui (or just give you random items) when you clicking on it. These blocks can take some money (requires Vault and some economy plugin) from players, if its' cost is more than 0. New command have been added - /randomblock <create...|remove>
Now you can set a limit to item list in box lore. Set "loreLimit" parameter in box config to some value, and box lore will be truncated (-1 or any negative number will remove lore at all).