As seen in Zio Joe’s Bar in province of Varese, Italy.Traffic Lights is made up of 3 single shots: The first one, green, is a Zio Joe’s . Pallottola. ” (Bullet). It is made up filling the Shot Glass with 2/3 Coca Buton and 1/3 95? Alcohol do not Mix. yellow is a Limoncello shot. Red is a full Shot Glass of Strawberry flavored Vodka. then yellow… and the green will make you go :-)”