For the drone ground station that I built, the ultimate design for power distribution was using a set of ground bars found at the local Home Depot. To prevent nearby bars from shorting out with each other, I designed a casing so that the positive and negative bars can be back to back safely. This can be useful to others who want to use these bars to carry current but also have electrical insulation.
You can find the same exact ones on The Home Depot by searching for 9 terminal ground bar. There was a "CMC NA-75B" engraving on my bars.
As you can see, the casing holds the bar rigidly in place. The best way to mount these are to screw M3 bolts from the bottom.
The model can be printed with a 2mm brim so that the PLA adheres better to the bed. Have not tried any other materials.
The two parts were created in CATIA V5