This project shows a tight convergence between real and virtual using Augmented Reality in combination with physics simulation. As usage scenario we looked at early physics education. And who doesn't love the original The Incredible Machine. So the final outcome was a small authoring tool with an example game that we honorable called the "The Interesting Mechanism". One can add new objects, build ramps, puzzles and levels. To make it even more fun you can simply change some of the parameters in the physics engine, such as gravity, gravity vector or friction.