Fill your glass with ice. You really want it filled with ice as this is key to the colors separating properly in my opinion.
Add your red juice to the bottom of the glass, creating your first layer.
Pour over an upside down spoon add your white layer. I used a lot more of this drink than the other colors to really try to create separation between the red juice and blue juice, just like a bomb pop.
Allow to sit for a few seconds and settle, then pour your blue drink over your spoon as the top layer.