Before we get into what you need, this drink, in particular, largely depends on your bartender. This is a BASIC Scooby Snack, there are many variations. This will get you on the right track.
You will need:
1/2 ounce Medori Melon Liqueur
1/2 ounce Malibu Rum
Splash pineapple Juice
Shaker filled with Ice, shot glass
Pour first 3 ingredients into your shaker, shake very well, strain into shot glass