This is a new feature in Nova Skin (online skin editor), now it allow the customization of pre-made wallpapers with your skin.
- Select a wallpaper
- Click over the player and select the skin
- Scroll down to the bottom of the page
- Select the wallpaper size
- Optionally, apply some instagram like filters
- Download or edit with pixlr to add more details
- Enjoy your new wallpaper!