I recently found a link to this site that randomly generates spaceships based on what "seed" you give it (like how Minecraft makes worlds). Most of the ships it makes aren't that good but I think it shows potential and thought it might be of interest.
The best 4 ships I've found so far are:
Wolf
Serpent
Viper
Archer (more debatable than the others)
EDIT: Leopard
I think you can also save them as editable models but as my computer has no modelling tools I cannot confirm this
NOTE: Site seems a bit laggy and may freeze for a second or two when generating more complex ships
EDIT: Link added because I am a fucking moron http://ship.shapewright.com/
The best 4 ships I've found so far are:
Wolf
Serpent
Viper
Archer (more debatable than the others)
EDIT: Leopard
I think you can also save them as editable models but as my computer has no modelling tools I cannot confirm this
NOTE: Site seems a bit laggy and may freeze for a second or two when generating more complex ships
EDIT: Link added because I am a fucking moron http://ship.shapewright.com/