It's zero sugar twist up, but any lemon lime soda such as 7-up would probably do, we filled it up to right before the glass we used curves out then added ~1 Oz I'd say of blue curacao, lending the drink it's blue color. We then added some ice cubes to cool the drink, then we added vanilla ice cream to finally make it the float it should be. To garnish the drink we used a maraschino cherry, a crescent moon we molded from golden fondant, and some yellow star sprinkles we had in a cabinet.