If you want to add the graham cracker rim, moisten the rim of the martini glass with the lime wedge. Sprinkle the graham cracker crumbs on a plate, and dip the rim in the crumbs.
Fill a cocktail shaker half full with ice cubes. Pour in the vanilla vodka, Key lime juice, cream of coconut and pineapple juice. Put the lid back on, and shake until condensation forms on the outside of the shaker, 10 to 15 seconds.
Strain the cocktail into the prepared glass. Garnish the Key lime pie cocktail with lime wedge.
