Contributions Call: World Youth Day desktop wallpaper needed

I have a problem: I can't find any good desktop wallpapers for the upcoming World Youth Day 2008 celebration in Sydney, Australia .... and I don't find that acceptable. So, I'm asking my gifted readers to create some and send them to me. The best submissions will be posted for all your fellow papists to joyfully set as their wallpaper. If you run a website or blog it's a great way to promote that as well. Why are you still here? Get to it!

FYI: extra kudos if someone fashions a dynamic wallpaper with a countdown timer!