From Wikipedia:
People who love cars submitted their own car designs and kept doing so for every iteration of the car's conception.Local Motors is an open source automobile company founded by John "Jay" Rogers and Jeff Jones, bi-located in both Wareham, Massachusetts (founded) and Chandler, Arizona (facility). They co-create vehicles with their community of auto designers, engineers, enthusiasts and customers. Local Motors is in production with their first vehicle called the Rally Fighter, an off-road race vehicle designed to also be street legal which customers buy as part of a build experience with Local Motors engineers in a Local Motors Micro-factory.
Why can't we do the same thing with a gun?
I'm just throwing this out there, because I don't think I can pull it off alone. Maybe someone else can take the idea and develop it. It would be awesome if I was kept in the loop, but if I'm not, that's alright. I'd rather give the idea away so that it might be useful.
For example, I love my Ruger LCP, but it isn't perfect. For one thing, it lacks an automatic slide lock after the last round. Second, it could come integrated with a laser and no iron sights. Third, it could have less branding and hard lines on it.
However maybe people will want to design a full-size handgun. It's up to the voters.