1 day ago:
I think it would be best to make a forum first. That way people will have time to make their submissions and everything gets voted on at the same time. It's more fair that way.
EDIT: I also think this pick should last more than one day. I say give it a week, during which time people can add their submissions to the forum. And then make the pick for spot graphics- including an option to keep the current icon/banner.