And the forest of Fangorn seemed to do it, as well. :)
I happened upon this after a search for Make It Rain:
“On my subway ride to work this morning, I played a mobile game that had me furiously swiping upward on my iPhone with alternating thumbs to make big green virtual dollar bills fly up and off the phone screen. Its called Make It Rain, and its currently the No. 1 free app in Apples app store.
All my ridiculous-looking swiping garnered me a bunch of virtual money, so I spent some of it to buy virtual buckets that would fill up with cash in the background when I wasnt using the app. Later in the day, the virtual FBI investigated my virtual stockpile and was going to seize it, but I bought them off with a virtual bribe.”
Apparently the game is a cynical look at making money through corruption.
Also, I recommend you lawyer up re: your game app. It's about to get dicey up in here.