Rocket Fizz Marionberry Martian Poop Soda is an experience to be enjoyed by those with a sense of humor and good taste, too. A marionberry-flavored effervescent soft drink that explodes with a fruity sweetness and glows under black light. Fizzy, sweet and sure to please the fruity craft soda drinkers among your customers. Martian Poop Marionberry is a bold fruit soda pop flavor made for a party. This is not a retro soda, but a new and novel experience, crafted with pure cane sugar.