"Stōk" are non-dairy coffee products encased in the familiar creamer cups, each of which adds an additional 40 milligrams of caffeine to your morning wakefulness slurry. They're available in two varieties: "Black Shot," which is presumably just regular coffee-flavoring; and "Sweet Shot," which is, you know, sweet.
While caffeine content in coffee will vary depending on brewing technique, a typical shot of espresso has 100mg of caffeine, making Stōk's "Limit 2/day" warning somewhat unnecessary, if wise in view of future lawsuits.
While you can order Stōk online (200 for $40)I think the real market for these lie in the convenience store, where reportedly they are starting to appear next to traditional creamers and other coffee adulterants for free—at least until unscrupulous caffeine addicts start swiping handfuls at a time. Why pay ridiculous prices for double-strength coffee drinks at coffee shops* when you can just dose up for the price of a small cup at the gas station?
Catalog Page [StokExpress.com]
* Coffee houses that serve quality coffee excepted.