Machining odd shapes on a denford starmill

[Kai]

Hi all This is a trigger from a woodwork clamp.
It is not so clear but the noes or top right hand bit has broken off.
It is made of a cast type plastic good smooth outer but honeycombe on the inside.
So I have been asked if I can make new handles. Yes I can make them but new to cnc so not sure how to get this shape into the Gcode as is needed.

can anyone offer some good advice please.
this is a bigger pic well it was ment to be lol can not seem to get it to the right size.