DIY: Multi-stage water rocket
No sir, this is a multistage water rocket with a nose cone, and parachute recovery system. This is the work of a water rocket scientist, or possibly a student with too much time on his hands. This thing is a beast, and the inventor was kind enough to write up instructions on how you can build one yourself.
Seriously, fins. Nosecone. A launching system. Two stage rocket. Check it out, it’s quite impressive.