Alaena

1/3 pineapple juice
1/3 cranberry juice
1/3 soda water
1 shot vodka

Named after Alaena Jac (Sydney, New South Whales, Australia) after tasting a Rebecca and noting it would be better with vodka. This is a surprisingly refreshing and delicious drinkEach ingredient should be poured in (no particular order though bar tenders will typically add the vodka shot last). And the drink should only be stirred - never shaken - to help maintain the soda water's fizz.