FunCmds is an easy to use Bukkit plugin that allows players to execute very unique and simple commands. One of the commands is /ping now if the player executes that command, it will send them a message saying: Pong!. There are also other commands the inherit that type of command. A list of them can be found in the header below. Even though there isn't a huge benefit of having this plugin, it provides a somewhat unique look to your server.
I am leaving it to you on what these commands say in chat. If you have any suggestions for commands, please post a comment below, or create a ticket. Suggestions are always welcome!
