Create a Wallpaper, of just ONE vocaloid / Utau / whatever else related.
Can be their song or other vocaloid's. just has to have one.
Ex: Miku and Luka "Manget" (bad)
Ex: Miku "Magnet" (good)
Ex: Len and Ren "Romeo and Cinderella" (bad)
Ex: Ren "Romeo and Cinderella" (good)
Ex: Kaito and Miku "Cantarella" (bad)
Ex: Kaito "Cantarella" (good)
If any questions - ask. I know it's not much (this is to help out the Challenage slam! on the O so I'm tring to keep it short)