I decided to try my hand at making a 3D part and created a fin can for it. I didn’t do a lot of detail, did about what I would have done in balsa. And it certainly isn’t scale, but it turned out pretty good I think. The fin can weights 15 grams and the capsule weighs 13 grams.
"You know, it, uh, won’t fly unless somebody pushes the button." From the movie October Sky.