So off I go to make my own. And I must say, I'm pretty proud of this!
Well, I gave it to my little one for Easter. He watched me do it at first, trying to figure it out.
The neat part of this toy is it will be something that will grow with him. Right now, he can use the big wooden balls we have. As he gets older, he can use the small wooden balls we have or the cute wooden Plantoys cars pictured.