Because all of the icons I create are vectors, I can export them out to any dimensions without making them appear stretched. Occasionally I export my icons to wallpaper size for the few who are interested. That being said, If any fellow deviant would like for me to export any of my icons out to wallpaper size, just ask. Of, course I will need to know what you want in the background of the wallpaper. Anyways, if you're interested give me a shout.
-Enjoy