Drizzle chocolate syrup around the inside of a martini glass. Stick the glass in the freezer to firm up the chocolate. In a shaker, add ice, vanilla vodka, crème de cacao, coffee liqueur and Irish Cream Liqueur. Shake well. Take martini glass out of freezer and rim with more chocolate syrup and them rim that with cocoa powder. Strain cocktail into the martini glass and enjoy.