I've uploaded a bunch of images on Society6.com. If you don't see the power you want let me know and I'll make it available for you, I can also make larger print sizes available on request.
I’ve been working with Bearded Pony on a Daily Superpower iPhone app and our first version is available in the app store now! This version is pretty basic, just a more accessible way for iPhone users to view the blog, plus there’s a search function so you can quickly bring up your favorite posts to show all your friends and random strangers on the street. Hopefully there will be many updates to come. As always suggestions are encouraged, I’d like to build this project up to be something that is very unique, lots of fun, and a good value for you guys. You can download it here.
Right-click (control-click on a Mac) on any image and choose "Set As Desktop Background" The wallpaper will automatically fit to your desktop. Or choose "save image as" to save it to your computer for later use. Enjoy!