For the runner I got
@
GeneralRolando
to edit an existing .stl file to make something better suited for our purposes. He did a great job!
As far as a custom submission (or C3V design) that's entirely 3D printed, I expect it will happen at some point. However, given our current thoughts on the subject it can't just be "here's the file and here's some painting instructions". At the least there would have to be a demonstrated ability to sell & distribute that, at the least, would meet all initial demand.