Prepare your glass
Mix the red, green, and white sugar on a small plate.
On a second small plate, place a few tablespoons of water or milk.
Dip the rim of a martini glass in the liquid.
Carefully roll the rim of the glass in the sugars until all of the rim is coated.
Make your cocktail
In a cocktail shaker full of ice, combine vanilla vodka, white chocolate liqueur, creme de menthe, milk, and cream.
Cover and shake well.
Strain into your prepared martini glass.
Garnish with mini candy cane.