I designed this rocket ship model as yet another overhang test. It was inspired by the ship created by Wallace and Grommit in "Wallace and Grommit: A Grand Day Out."
I streamlined the basic shape and tapered the doorway in order to reduce the angle of overhangs because I was trying to be nice to my printer.
Print with 3D Printer. The wall thickness (and fins) are fairly thin, so use a solid infill print setting. No supports are necessary (at least in my experience with ABS).
Sometimes the rafts print well and contribute to the effect of the "engines" on the fin tips.