Well here is something I thought of:
How about people use /noclip on /devmap (or whatever) and make a cool and/or weird base that you normally can not make in a real game. This is just for fun, however I'll give a cookie to whoever can make the wierdest/coolest base. Here is an example I made quickly, however I know it isn't the best, but it's an example. So, just for fun post really weird bases you made.

Here is mine:

(In that place above the Alien default base on Karith.