Wallcat - Enjoy a new, beautiful wallpaper, every day.
Madame Tussauds - Crowdsourced 3D scanned gallery of the celebrity museum
Splashify - Beautiful desktop wallpapers for Mac and Windows
DeviantArt muro - DeviantArt muro is an HTML5-powered drawing application that lets you create artworks using the simple touch of your fingertips.
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Sketchfab for Museums - Browse thousands of cultural artifacts in 3D and VR