Check out this sweet cocktail, hilariously called The Double Rainbow. We discovered it on one of our favorite blogger's sites and it was originally posted on this wickedly cool blog that's new to us, but we'll be checking in on regularly!
1 ounce vodka
1 ounce St. Germain elderflower liqueur
4 or so ounces of soda water
4 dashes of grapefruit bitters (Fee Brothers brand)
lemon peel for garnish
rainbow ice cubes
Make rainbow ice by adding food coloring to an ice cube tray, filling with water and freezing. Cut lemon peel into stars. Add all ingredients to a glass filled with ice in rainbow order (two cubes per color, making it a double complete rainbow). Garnish with lemon stars.
For your viewing pleasure, the double rainbow video: