I make today a new tutorial about the trips and tricks with Ogre 3D engine using Blender 3D.
If you want to see this, you can go on the tutorials part from my site.
This is the just a result of my simple example.
The result is shown in next image sample.
It's fun. You can try or your children. Blockly is a web-based, graphical programming language. Users can drag blocks together to build an application. No typing required.
You can see more on google project.