Put the ice cubes in the shaker or a jug and add Vodka, Lime juice, Lemon Juice, Orange Juice, Blue Curacao and sugar to it. Now shake it well for 10 - 15 secs or if you are using a jug then mix it with the Cocktail spoon.
25 ml Vodka, 25 ml Orange Juice, 10 ml Lemon Juice, 5 ml Lime Juice, 3 tsp Caster Sugar, Some Ice cubes, 25 ml Blue Curacao