Step 1: Materials
I had this roll of 3 core under the bench. You only Need 2 core ( i cut of the solid earth wire )
The next thing you need is two crocadile clips. and thats it.
Step 2: Assemby.
Strip one end of the outer case. ( 10cm or so ).
Cut away one core ( if it is 3 core ) I had a sigle solid earth wire i cut off.
Push on your crocadile clip and crimp on with a pair of pliers.
Bend into the required shape.