1. Download one or all of the backgrounds( links above). Once you download them onto your phone you can change them as often as you would like.
2. Email the image to yourself and then save the image to your camera roll (to do this, simply press down on the image until a window pops up with the option to save the image).
3. Go into your phone’s settings and change out the wallpaper. For iPhones: Settings>Wallpapers & Brightness>click on the home screen image under the heading called “Choose Wallpaper”. Tap on your Camera Roll and click the newly downloaded image. You will not need to move or scale the image, just click “SET”, then choose “Set Lock Screen”.
These wallpapers should work with most phones, but will definitely work for iPhones and Droids.