Aggressive Comix came up with a delectable Joker-themed cocktail called 'The Clown Prince.' The drink is part of Aggressive Comic's ongoing 'Secret of the Booze' video series and is of course, in homage to one of Batman's most popular arch-nemesises.
The drink is appropriately colored purple and green, like the Joker's suit and is apparently as strong as it is sweet. It is made by rimming a martini glass with green-dyed sugar and filling it with equal parts bubble gum vodka and grape juice. (The juice and liquor can be shaken or stirred, depending on the drinker's personal preferences.) Finally, the drink should be garnished with a large blood orange wheel.
No one will be asking you "Why so serious?" after you have downed a few of these villainous cocktails.