FunnyLocker - This is an interesting lock screen app for FREE. Different from other lock apps on the market, in addition to the traditional lock-screen functions, you can use this app to tease your friends.
This app has a special unlock. The main interface displayed on the screen is the traditional sliding unlock way which will mislead people
Trick your friends into thinking you have the new Windows Phone 8 device. This app is replica of WP8 (not relased yet, don't mistake it with WP7) start screen. Remember this is not a launcher, but actually it can launch apps. Get newest Metro UI style on your phone - its free