![Smile :)](./images/smilies/icon_e_smile.gif)
I know it is based on an older trick which name escapes me for the moment. Different versions have been made throughout the years, the most beautifull and baffling version in my opinion being Richard Gerlitz' Family Ties
![Image](https://www.martinka.com/media/auction/400/18/018599.1.jpg)
I think this would be a great project for people like ØyvindK, Rob, Simon ... to remake! It is self-working and a real mechanical marvel ... (I don't know how it works by the way
![Smile :)](./images/smilies/icon_e_smile.gif)
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)