This is my example of project on FreeCAD. Actually was my first project I made in 2017 on that software. I intended to animate all parts but I think my measures were wrong when I created the toy. I made that project with FreeCAD 0.17 version on Windows 8.1 (I'm a Linux user now).
https://peertube.video/videos/watch/1dd ... ed2acfc15e
Some more screenshots: