Blue Lagoon

50 ml Vodka
20 ml Blue Curacao
100 ml Lemonade
1 orange slice
Ice cubes

Pour vodka and blue curacao in a shaker with ice, shake well & strain into ice-filled highball glass, top with lemonade. Garnish the brim with an orange slice.

OR use some Blue Raspberry syrup in some soda water with a squeeze of orange and call it a day.