Two items I found that I am thinking of using on the feathers

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On the right is a "standard auto fuse" holder I am thinking of using this as the link/fuse for the next Featherweight robot as it won't have to be that powerful. this unit comes with it's own backing plate so you can attach the fuse holder to the robot quite easily. Also if you wish to have more than one link. you can clip several together.

the Item on the left is a quick assembly wire connector. Lift the orange tab insert the wire and drop down the tab any wires connected to the same block will be electrically connected to the first.
These units are not too expensive these days, they can handle wire up to 12AWG and are rated at 32A I believe they could take more than this for the short times they are used in a robot fight, as the rating is almost certainly for constant use.
Something for me to try out I will keep you informed.