BIC powered ballpen

Hello world,

First start of this design was a simple fact: everybody have a bic ballpen at home, this model where ball point and cartridge come out easely (2nd picture)...
And it finish his life most of the time with broken body and its rock solid point/ cartridge fully functionnal with more than half level of ink left.

So here is the (earth people) revolution! And the action where 3d printing for everyone take its sense--> print your favorite design of a body like this one, and simply f