Related; Copenhagen Suborbitals - homegrown opensource _manned_ rocket: http://www.copenhagensuborbitals.com/ - Peter Madsen (one of the two guys building this thing) also built a submarine..

Edit: June launch attempt http://www.youtube.com/watch?feature=player_embedded&v=K... http://www.copenhagensuborbitals.com/contentgfx/Rocket-2011_... http://en.wikipedia.org/wiki/Copenhagen_suborbitals