Hello obsidian,
First off love the game. Reminds me of the movie " Honey I shrunk the kids" I watched as a child. In the movie they get caught in giant drops of water when the sprinkler gets turned on, which left them scrambling for shelter. I know there is a sprinkler in the game. I think it would be cool for it to get turned on randomly which could send giant drops of water throughout the yard possibly damaging your base. Or rain, same concept just with clouds. Thoughts.