About this 3D model

I wanted to create a marble run that could be used with a peg board so it would be easy for my kids to put it together and take it apart. The mounting peg is ten sided so you can get about 6 different usable angles, and holds snuggly to the peg board. Currently there are three track pieces, a straight run, a curved run, and a toggle piece. I am hoping to make more as time allows. Suggestions are welcome!