Stephanie's "Phone" book

Ever seen a volvelle? It's a device that changes one picture into another with the sweep of a tab. They are so cool! With Stephanie's "Phone" book, I decided to try my hand at making a volvelle. I began with a picture of an old rotary dial phone ("Then"). When you move the tab to the left ("Now"), a picture of an iPhone is revealed! Similarly, I took a photo of a phone booth ("Before") and when you move the tab to the left ("After") you see Superman!

Although I had a template, my cuts were not perfect and I would probably use a heavier weight cardstock the next time I attempt this, but I think you can get the idea.