After I downloaded the app I was reminded of a blog post by my buddy Raymond Camden. In the post on the Marvel Comic's API, Ray shows how to query the Marvel database and display covers. So I decided to combine chocolate and peanut butter into one awesome combination.
The Muzei app provides a way to write an extension to provide a new data source. So what I've done is to create an extension that randomly picks a Marvel Comic book cover and sets it as your wallpaper. It's called Comic Cover Muzei.
Select the data source
Set your options
Enjoy your art
Right now you can set an option to only download the images over wifi if you are worried about bandwidth usage and you can set the refresh interval from 3 to 24 hours. I've got plans to add more options to allow you to pick the character or series to pull the images from.
Also, right now the app only uses Marvel Comic covers but I'd love to add other companies like DC, Image, etc.