This is a video on making your iDevice's springboard look a little more adventurous. This tweak is called Aquaboard - water effects. This you will need a device jailbroken on IOS 5 or higher and the source stated.
Step 1: Go into Cydia and go to manage, and then Sources and click on Edit and then Add and type the source http://ihacksrepo.com/ and click Add and it will prompt you again and click Add Anyways.
Step 2: Go to the search section of Cydia and search "AquaBoard - Water Effects" (No Quotes) and click on the one from the ihacksrepo.
Step 3: Click Install and then Confirm and once its done installing restart your Springboard and you will notice your Springboard has a watery look to it. Enjoy :)