Configurable Air Plug

This is a simple air plug for an inflatable toy. It is a measured duplicate of one used for a particular toy, but is customizable so that it should work for other toys.
The openscad source is very short and so should be a good introduction to openscad.

I re-did this project on Fusion 360 and included the source file.
The bulge is slightly different, because scaling does not work the same in Fusion 360 as it does in openscad. I also changed the length of the small section to not include the