Fill an ice cube tray with water.

Add one drop of food coloring, making sure to to use a variety of colors, to each hole in the ice cube tray. Using a toothpick, gently combine the water and food coloring in each hole.

Place the ice cube tray in the freezer for at least 4 hours or until the ice cubes are fully frozen.

Gently remove the ice cubes from the tray and layer them in your glass.

Add your favorite clear beverage and enjoy