Bukkit

SimpleTreasure lets you hide treasure chests with a command. You can define a lot of properties about treasures, such as randomness, y-level, enchantments. Also you can specifiy the setup file right with the hiding command, so you can draw treasures from a configuration file of your choice. The configuration allows default presets to confine what blocks are replaced by treasure chests and what blocks must be neighbours as well as per treasure definition of those.

The only feature is a command to hide treasures !