Hi, I am an industrial designer from Argentina with a big experience on concept design. I´ve done many projects like these, having to consider ergonomics , materials and processes involved.
As a product designer i´ve got the knowledgment to turn your ideas into a potential product , means that i am not just a 3d modeller like many on this page. I also have the ability to model and render in a competetive way.
Ive been using SolidWorks for almost 7 years, being able to model from simple to complex surfaces as you may need for this toy. I invite you to visit my portfolio which speaks for myself. I hope you hire me , i will exceed your expectations. I know there are some bidders who put a lower price, but i asure you that you will get a professional consulting meanwhile the design process.