Here's the base of the parachute pack for the RX-79[G] series of Gundams. I'm working on the parachute top next. It's currently scaled for 1:100, but scaling down to 69.44444% will get you spot on 1:144 for high grades.
My 3d printer is not working, so I've also uploaded it to Shapeways. If someone out there prints it, I'd love to see it!