This is GREAT!!!!...and awesome that the principle AND the teacher showed a little common sense.
One of my boys wanted to do kind of the same thing while in 8th grade(just two yrs ago) and the teacher said NO WAY to the bow, and had the principle call us at home to confirm NO WAY on the bow even without arrows. They said they would allow a PICTURE of a bow....so he changed his whole project.
Looks as if your boy NAILED it!!!!
Great job from everyone involved!!!!
Tell Nick that our house says GREAT JOB!!!!!