Not a mod. I crafted that myself and did a test run on survival. Pretty damm dangerous to tell you the truth ._.
Finished another island. Accidentally spawned a village on it though.....

And the view from below.... (Yes, its THAT huge)

Edit: 9/17/13
Attempting to alter the spawner creation for a more interesting experience. Of course, doing plenty of testing first before playing with that.

Edit: 9/18/13
Also creating some "real" rare items which is in WIP, but nice to try on for the bonuses. And yes, I do test them to make sure the value IDs and such don't break anything.

Finished another island. Accidentally spawned a village on it though.....
And the view from below.... (Yes, its THAT huge)
Edit: 9/17/13
Attempting to alter the spawner creation for a more interesting experience. Of course, doing plenty of testing first before playing with that.
Edit: 9/18/13
Also creating some "real" rare items which is in WIP, but nice to try on for the bonuses. And yes, I do test them to make sure the value IDs and such don't break anything.