Wallpaper Manager for Android
A simple little app that pulls a JSON file from a url of your choice and lets you apply them or save them to your sdcard.
To configure this application, check the Config and customize it. Be sure to change the folder and the manifest URL to represent your unique information.
An example of the JSON file can be found in the folder. Assets
Note, this application is based on ActionBarSherlock so you will need to add that into your workspace.