I think the auction plugin would be a nice touch to CrypticCraft.
You can easily sell items without having to use caps lock in the chat and tpa and teleport and all that stuff.
I recommend this plugin: http://dev.bukkit.org/bukkit-plugins/floauction/
because you can only auction real items so people cant scam you and rename a stick ’64 Diamond Blocks’ and get your money.
Thanks for reading and i hope you add this feature soon