Dip the rim of the shot glass in chocolate syrup, then in graham cracker crumbs. Pour the shot of marshmallow vodka and add the splash of 151. Light the 151 on fire in whatever awesome creative way you want. While letting it burn, sprinkle cinnamon over the top and watch as it crackles. Blow out the flame, lick off some of the chocolate syrup and graham cracker and take the shot.