Nice, a clone of Soda Constructor! I once went to a talk by the creator, Ed Burton. His message at the time was that you should not be afraid that people will use your product totally different than you intended. I can't remember his intentions, but they were very different and he was amazed by how people started to use it and what they created with it. https://en.m.wikipedia.org/wiki/Soda_Constructor
Aaah, Springs World 3D is mentioned in the links section at the bottom. I spent tons of time watching the rolling/walking/bouncing contraptions.