Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
GifBook - Make animated GIFs into paper flip books
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Print A Gif - Turn any gif into a printable flip book
Splashify - Beautiful desktop wallpapers for Mac and Windows
ASCII Prints - ASCII art on your wall ¯\_(ツ)_/¯