What the hands are doing

 

 

By special request, one that managed to spread pretty far when originally posted. 

Many people took the time to point out to me versions of it that had already been done. I will at least say for myself that as far as I could see, everyone else had the hands turning into the hands of Satan, but since I would draw Satan with little '3'-like squiggles, I had the hands turn into each into a little Satan. So. That's a much funnier joke.