There is a new mod available in Cydia that will customize the little page dots to smiley faces. You know, these dots on your springboard that tell you how many pages of applications you have, well, now you can change these dots and make them smiley faces.
This mod comes in 3 different colors: blue, pink and green (as you can see on the picture above). To download this mod, go to Cydia and install the apps called Smiley Page Dots.
To my knowledge, this is the only mod that allows you to change the page dots, but I might be wrong. If you know of any other similar mods, please let us know in the comments.