We had a build session today, and were lamenting the current unavailability of Big Gun cannons. We talked about printing parts on a 3D printer, getting parts lasercut, and even building Big Gun sized versions of fast gun cannons. Any ideas? One idea we had was giving the option of using BB cannons for any legally-armable cannon from 75mm to 279mm (1/8" to 3/16" under current rules). I know that 75mm is 1mm under 3", but several small ships ran 75mm guns and it's silly to disallow them (I think). People wanting to keep their current guns or to go with the numbers listed (and rates of fire) could do so, but still allow people to opt for a BB cannon in place of those guns. Thoughts?