This is traditionally a party punch bowl drink where large bottles of the ingredients are used. But in keeping to the parts measured, this can be a single serving. It looks great in a martini glass with a slice of lemon.
Start with the Blue Curacao, then add the Midori Melon liqueur, next add the Margarita mix (with or without tequila to your tolerance), next add the Mountain Dew, and finally add the Ice. Dry Ice adds a nice effect, if you have any on hand. Also, if you are avoiding caffeine, you can use Squirt instead of Mountain Dew.