I always play on peaceful, now I know what some of you are thinking "What's wrong? Enemies to hard for you?" No, personally for me Minecraft is about construction rather than survival, which is why I run my server without hostile mobs and with item spawning allowed, right now I am working on a fleet of airship, sci-fi thingies, I'll try post some pictures of the only one completed so far, Prometheus, soon.
Edit: Still waiting for a release of the Kinect hack.
Edit2:
A nice night-time shot of the Prometheus from a stack of cobblestone on a tree.
A look at the very empty bridge from the outside.
The Dedication Plaque reads "Prometheus MC-93451" (In case you can't read it on the image) and a hole in the bridge is useful for pushing disobedient bridge officers out of.
A nice view outside the port windows.
The Garbage Chute, more space to shove bridge officers and useless redshirts to their demise.
Warp Engines? I plan on changing the lightstone to blue cloth.
Next project: Much bigger ship, more ships
Future Project: 1:1 (!) Scale Warbird perhaps?
Edit3: Anybody else think this thread needs a (PIC HEAVY) warning in the title?