Pineapple Upside Down Martini

2/3 cup pineapple juice, chilled
1/3 cup vanilla vodka
1 oz. white cranberry juice
1 dash grenadine syrup
Pineapple wedges
Maraschino cherries

Pour juices, vodka and grenadine into a shaker full of ice. Shake, and pour into two fabulous martini glasses accessorized with flip flop wine charms. Garnish with a cherry and pineapple skewer. For an extra shot of sweetness rim your glass with cocktail sugar. Pomegranate or vanilla cocktail sugar goes well with this martini.