Cocktail Blue Buddha - made this one from memory, had it in Ba Hoi in Sheffield, about 10 years ago.
for one person
1.5 vodka
0.5 blue curacao
0.5 archers
0.25 lemon
0.25 lime
0.5 sugar syrup
all together in a tin, shake with ice, strain over crushed ice.
5/5 clean and more interesting than the standard vodka mix, blue looks awesome too.