AutoWallpaper - Using AutoWallpaper:
Muzei - Muzei is a live wallpaper that gently refreshes your home screen each day with famous works of art.
Becrux Wally - Wally is a Qt4 wallpaper changer, using multiple sources like files, folders, FTP remote folders, Flickr, Panoramio, Ipernity, Photobucket, Buzznet, Picasa, Smugmug, Google, Vladstudio and deviantART images. Now it's available in many languages!!
National Geographic for Muzei - National Geographic pictures for Muzei
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Muzei Ghibli - Show pictures from Studio Ghibli (Muzei)