I was at a friends house and he made a cable end for a throttle cable on the fly and it reminded me that I never posted this. 

I made this aluminum plate for making cable ends. I made two different sized knarp holes. I drilled 2 holes thru an aluminum plate and partly into another. I then bolted them together and had a nice mold for a knarp. I also had to make an entry hole for the cable. 

When you are finished you can file it down to the size you like.