Not entirely sure if this goes here, but im not sure it goes anywhere else.
Wallpaper Engine is an app that gives you an animated wallpaper, some that are interactable, some with music
you can make your own too, there is a built in software to make wallpapers, or you can just convert gifs and webms into papes.
And the best part is, it uses basically no resources to run.
buy it here: http://store.steampowered.com/app/431960/Wallpaper_Engine/
or get it cracked from the piratebay or basically anywhere else