Fancy playing a trick on anyone who looks at your phone? Then be sure to download the Broken Screen Theme.
This free theme, for S60 5th Edition phones, adds a realistic cracked glass effect to your home screen. It's certainly convincing enough to make someone look twice, although on closer inspection you can clearly see that it's a wallpaper because the cracks run underneath the time and date bar.
Another disappointing thing about the Broken Screen Theme is that the damaged image only appears on the home screen rather than on the menu screens. What's more, it doesn't add any new icons to the S60 interface.
The Broken Screen Theme is a good way to prank your mates, but unfortunately the theme doesn't go far enough to make the effect totally convincing.