Thanks everyone....
the hands are from Ghostride.com. Thick wire was inserted thru the fingertips so the digits would hold their pose. Right hand was cut at the wrist and repositioned downward.
This caused a missing "chunk" of the wrist that I filled in with Great Stuff. Cut excess foam to shape, sanded and repainted in a bruised, raw and weathered look.
The slash gesture was the key to the prop. If I couldnt make the hand right I probably would have scrapped the idea.