<p>I got this really cool project in Ap physics to make a bottle rocket. I made ne 2 1/2 years ago for science class but that did not go so well, so this year i am going to try to not repet the smae disaster. I was thinking about fin design and was wondering does anyone have any good fin designs or links to a page that does. I was searching in the internet and found some but not too many and i want to see more options.</p>