This potion is based on a drink called the Magic Woman that I found while browsing a cocktail recipe website. It's very refreshing. And, of course, purple.
The Magic Wanda
1 oz light rum
1 oz gin
1 oz Marie Brizard Parfait Amour
1/2 oz fresh squeezed lemon juice
2 1/2 oz Sprite
Serve on the rocks in a tall highball glass.