A free program for Android, by Mobizyng.

What is Polygon Wallpapers?

It’s a simple app that gives you the best photos from Flickr. We’ve collected the best photos from all the categories you care about, so you’ll always have something new to look at. You can set your home screen to an HD Polygon wallpaper.

How do I set as wallpaper?

All you have to do is install the app and go through the settings. You’ll see an option that lets you choose between HD or SD quality. You can also crop the image to a certain size and save it to your SD card.