You will like this MOD of the great BouncingApp Demo, it looks like a real coin stuck inside the real iPhone chips..
Install by Installer:
Add (http://apps.iphoneislam.com) to the Installer Sources
You will find the Coin in iPhone, inside the iPhoneIslam category..
I only modified Bounce App. I DO NOT take credit for this application. I just changed the graphics around.