The first step is to wash out your empty beer can, unless of course said beer is a can of Pabst Blue Ribbon. If it is PBR, promptly go drink a better beer. You really should be ashamed of yourself.
Once the can has dried, you will want to remove it’s pull tab. Only perform this next step if you have not been drinking. Using the utility knife, saw off the bottom of the can. Chances are your can will not have a red dotted line. If you see one, put down the knife…you’ve had too much beer.
Be a man, get yourself a dang hacksaw!