Water Rocket Fin Jig

Since many of my students like designing rocket fins out of cardboard in order to attach them to their rockets, I wanted to design a little jig for them so they could mount the fins on symmetrically around their rockets. Specifically, I made jigs for the following: 3 Wing design4 Wing design5 Wing design4 Wings at a 30 degree angle.If you want a 2 Wing design you can use the 4 Wing jig.If you can think of other designs you would like, just leave them as a comment! Enjoy!