I remember drawing that exact same picture dozens of times in school! It’s the quintessential bomb.
I was expecting a drawing of a 500 lb aerial bomb with fins & nose fuse, with “Eat this and DIE, Tojo!” scrawled on it.
Anyway, school administrators are but one part of our rapidly growing Fascist ruling class.
You should have seen the armaments I provided for the airplanes I used to draw as a little kid......