Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Video Paper - Set a video as your wallpaper.
Plastuer - Plastuer is a Windows application for setting GIFs, videos, and web pages as your wallpaper.
Wallpaper Cycler - NuonSoft WallpaperCycler is a powerfull utility to manage all your wallpapers and to automatically cycle between your wallpapers.