Starting the seperate discussion topic for the build / what will it cost questions...
My question: Are either of the two connection types shown below considered "legal" for a LEGO set?
A: rod through a technic connector pin
B: rod end into a technic axle hole
Neither seem to put stress on the parts, and they come apart easily enough. However, I didn't know if TLG had an official stance against either of them (i.e. for child dexterity issues). I also didn't see them in that "illegal connections" presentation from 2006.
(Let me know if there are issues seeing the linked image above)