This is my original design. I made this design ion the idea that it would cause the rocket to spiral like a football through the air. I later decided that it would cause more drag and more mechanical energy to be lost, meaning the rocket wouldn't go as high, I still think it looks really cool though and is still worth a launch. Don't forget to scale the rocket for the bottle that you have, turn on vase mode, and set bottom layer thickness to 0.
I am a new college student and any tips you leave will be much appreciated and will go directly into my college fund. So, if I make anything that helps you or you find useful please leave a tip. Thank you!
Check out my LinkTree here: https://linktr.ee/westinspace
Check out the video about my bottle rockets here: https://youtu.be/s1Jk3NoKY-M