More about Making Mechanical Cards from Amazon:
Mostly based on Victorian and Edwardian designs, these patterns feature exquisite paper engineering, including pull-tab butterflies, bouquets, fans, and scrolls; dissolving pictures and kaleidoscopes; and sweet Venetian blind variations. They vary from the very simple to the really intricate, but the step-by-step instructions and diagrams make even the most complicated ones very achievable. Make a puzzle purse, a box stage with musicians playing, and adorable animals in a revolving wheel.
Here's a link to Making Mechanical Cards: 25 Paper-Engineered Designs