Some fans of my cocktails came back from Trader Joe's with a new ingredient - Pomegranate Lime juice. We got it on a hot, hot Sunday, and mixed it into a number of new drinks.
1. Mixed with Flor Cana rum in a highball glass with lots of ice: Nice. Seems to have the feeling, if not the actual taste, of coconut
2. Mixed with vodka in a highball glass with lots of ice: Not really a pom cosmo.
3. This one:
1 shot Trader Joe's Pom Lime juice
1 shot rum
1 oz Malibu coconut rum
1/2 oz St. Germain elderflower liqueur
Shake over ice and serve up in a martini glass
Going by my previous definition of a Mai Tai (fruit juice, 2 rums, orgeat or other nutty accent), this pretty much qualifies. And St. Germain has a rather tropical flavor, similar to lychee. But the effect is very different: The pomegranate and elderflower have a grassy, botanical effect. The rum/lime/coconut aren't as tropical as you'd expect.
In conclusion: St. Germain liqueur - yum.
Bonus cocktail: Add a shot of pomegranate lime juice to a margarita. I call it a Pommy Bastard.