Check This App out. The main function is to replicate screens.
This can be a great app to fool friends and to avoid giving your device to anyone to use.
Feature:
*3 different types of screens (two custom replicated screen, shutdown screen and blank screen).
*New screens will be added through updates
*Custom Screens can be made to replicate the home screen
*Blank Screen to view that device is not functioning properly.
*Easy exit from any screen.
This is an awesome app if you want to fool your friends to think that the device is not functioning properly.
Check it out for yourself.