Gilbert Goat built his windmill on a large rock floating in the sky, so that he could catch more of the wind. He uses a balloon to travel up and down to the village when he needs to.
I always wanted to try buiding a floating rock, and it was when I acquired a bunch of trans clear technic beams that I had the idea of trying to use them as water. The rock is quite large and heavy, and both times I've displayed this, everyone comments that they think it's going to fall over. During building it almost fell over several times as I figured out how to make it stable, but it's quite well anchered now, even though it tends to lean to one side, and changes what side it leans to when I put on or take off the windmill :P It's also funny how parents are terrified to let their kids touch it, unlike anything else I've ever displayed... The funny thing is you can actually push it a bit, and it will wobble a bit back and forth, but not fall over
And a horizontal vertical () video of the windmill spinning:
Sorry