I made this using ITunes visualiser. Its damn simple. You can do it too:
1. Start ITunes visualizer by clicking ‘Ctrl+T’ and then ‘Ctrl+F’ to make it full screen. (♫ Some music should be playing♪)
2.Then press the button saying “Prt Scr” on your keyboard. This will copy an image of the screen to the clipboard.
3. Then simply use any picture editor or Paint and ‘paste’ it. Then save it as a .jpg image file.
Jus click on the wallpaper to see it in full size and then save it:-)