Like all Starbucks stainless steel tumblers, this one has a tapered bottom to fit inside cup holders and a glossy black lid ...

The nine-piece collection contains three cold cups, two tumblers ... together in a grid pattern. The venti-sized cup is meant to hold cold drinks, like Starbucks' Iced Cherry Chai Latte off ...

But no, this discovery involves a lot less mess. If you've purchased a venti iced beverage from Starbucks and you have a 40 ounce Stanley tumbler, pop off the tumbler's lid and slide your plastic ...