Poke Ball Frappuccino
Everyone loves Pokemon Go - including Starbucks. This secret menu item mixes a vanilla frappuccino with a strawberries, and creme frappuccino with strawberry whipped topping. It's made to look like a Poke Ball.
This secret menu item - and now a limited edition item option in select stores - is full of color and flavor. It's a mixture of pink powder blended into a cream frappuccino with mango syrup and a sour blue drizzle. While this drink is officially on the menu, it started off as a Starbucks barista original.
Cookies & Cream Frappuccino
The Cookies & Cream Frappuccino has been known to pop up from time to time on the Starbucks menu; but when it's not explicitly available on the menu you can order one by ordering a Double Chocolate Chip Frappuccino but with white mocha sauce in lieu of the regular mocha sauce.
Cotton Candy Frappuccino
Give a couple pumps of raspberry syrup to a Vanilla Bean Frap and you'll have a liquified version of everyone's favorite carnival treat.