Another "Gentleman's Gift" idea.  This is a 10 Oz. Tan leather covered, stainless steel flask.  Round in shape and comes with 2  S/S shot cups attached to the top of the leather covering.  If you are going to carry your liquor on your person, this fine looking flask is a lot classier then carrying the liquor bottle around itself.  I guess you could always put a Red Bull in it as well, or a red bull cocktail.  Just a touch of style from the better days of classy accessories. 

Kind of like a small canteen for an alcoholic.