So a couple days ago I created my 499th wallpaper. Which means the next one will be the big Five Double-O. Obviously I want to do something special for this wallpaper but I'm kinda stuck. Right now I'm thinking crossover, but beyond that I'm sure what to do. I also don't want to do anything overly self promoting. So at the moment I'm open to suggestions. If anyone has an idea or some advice, please feel free to share.