Whether you're a high rolling corporate shark or a second shift manager at a small town taco stand, nothing reminds your potential enemies/reluctant employees of the inherent brevity of life quite like a simple bronzed human skull.  Adorning your desk or drive through window with one of these grinning echoes of the reaper is certain to keep unruly customers and snotty office rivals on their best behavior, and by simply opening the jaw, you can create a unique business card holder worthy of the most bloodthirsty despot.