A simple game, could be quite interesting. A game that could very easily be played in a bar, making the lives of others more interesting. Played with liquor not beer.
Shuffle the cards. Start dealing one card at a time, face up, to each player. The first person to be dealt a king picks a liquor, the second dealt a king picks the mixer, the third makes the drink (or buys it), and the last dealt a king drinks it.
This can turn out to be quite a laugh; it relies purely on chance, and if you pick a really disgusting liquor or liquor/mixer combination, it could happen that you'll be the one required to drink the concoction.