First, choose the flavor you want to make. For example, for a blue slushie, use club soda, cold water, sugar, blueberry drink mix, a few drops of blue food coloring, and ice. For an orange slushie, use club soda, orange juice, orange drink mix, sugar, and a few drops of orange food coloring, ice. Finally, use Coke Zero, water, ice, and lemon drink mix for a cola slushie.