I think it would be neat to add the Lucky Block plugin. If you're not sure about what it is, its basically a yellow head with white question marks. When you try to place it you will be presented with whatever is inside of it. It could be loot such as ores, or you can spawn a hoard of mobs and even a obsidian deathtrap [lol]. Some things from the plugin will need to be disabled if added because I know for sure there's a chance to spawn a wither with it. I just think it'd be fun and could be given with vote crates or the daily/weekly chests. What do you think? https://www.spigotmc.org/resources/luckyblock-super.13504/
It sounds cool and I have used it as a mod/played with it as a plugin before. I am not really interested in Lucky blocks on the server, atleast it would need alot of tweaking. Edit: I change my mind, I want lucky blocks