I answered a post in the techniques forum, but thought I would post a new thread here for those interested.
I make my cables in 1/35th scale by using 7 strand brass picture hanging wire. I cut a strip of foil (an old tube of the wife's hand cream, off the top of a wine bottle, etc) about 11mm long and 3/4 the width of the wire. I glue the strip to the wire with epoxy.
and when dry curve it round a nail. Clamping the end with tweesers will give you the right shape.
Using a longer, wider length of foil, I wrap this around a drill bit the same diameter as double the width of the cable (for the part where the cable loops back). Slide it up the wire and clamp the foil around the cable, including crimping the end closed around the wire, and drop some cyano down inside to hold it all together.
Then using an old paint brush handle, just burnish the edges of the foil in the eye loop over the wire just like the real thing. For the other end make sure you slide the drill bit tube of foil onto the wire before starting the loop process!
These pics were of a rush job to use for this thread. Usually I twist the wire more to make sure the strands do not come apart at the bend, and they then look more like the original.