James Earl Jones' Big Teeth
Considering that James Earl Jones is basically Darth Vader himself, I'm gonna go out on a limb and suggest that the bite force of his bear trap jaw is something incomprehensible to us non-Jedis. It is a bite force not seen around this planet for a long time...a long time.
James Earl Jones' big teeth are straight, strong, and flush on both his upper jaw and lower mandible—if we could somehow convince Darth Jones to clench down on one of those pressure gauges that alligators bite, I'm convinced that the gauge would violently explode and take our entire star system with it. Such is the power of the Dark Side.