As far as lockscreens are concerned, I still think MIUI has the most comprehensive list of themes available. Not to mention that all of them are free. Some developers take a standard looking lockscreen and just spruce it up. Others take it way beyond what is considered normal and give you something so unique that you just have to install it. For example, this lockscreen we found over at MIUIthemes.com. It is a zipper that you pull down from top to bottom to unlock your device.
You might be thinking that you don’t really want to drag your finger across your entire screen to unlock it, I’d agree. It is however, something completely different than what you are used to seeing and using. Even if it doesn’t warrant becoming your new lockscreen theme permanently, I still think is warrants a download just to show off to your friends.
Once you download the MTZ file and move it to MIUI/Theme folder, you will only find it under customize > Lockscreen. Feel free to give it a whirl below –
Download – Zipper Lockscreen.
Source: MIUIThemes