Last week Papa had an American Society of Mechanical Engineers (ASME) meeting after supper. He's the faculty adviser. M.G. had religious ed that night and Papa thought it would be fun for M2 to tag along to the ASME meeting, since they were holding an impromptu design competition.
The design goal was to make the contraption that would fling the little green frog the farthest. It sounds like M2 really got into helping. He added some tape and that black binder clip at the top. When they got home he was so excited to show us how it worked and to tell us all about how their frog went the farthest!