A flickering tea light might be cool in that display stand.

There are two previous fin gluing guides on Thingiverse. They are both highly configurable (some OpenSCAD knowledge required), and they both position all fins at the same time. However they both use an 'in the tube' support, so they require that the fins must be placed before a motor mount is assembled.

https://www.thingiverse.com/thing:2298402

https://www.thingiverse.com/thing:26001


I don't think that I'd had these in my model rockets Thingiverse collections before, but they are there now. https://www.thingiverse.com/garyacr...s/model-rockets