Who the hell would drink this?
Established in 1973, the Sourtoe Cocktail has become a Dawson City tradition and is exactly what is sounds like: An actual human toe that has been dehydrated and preserved in salt is served in a drink.
It's your first week aboard the Enterprise and Captain Kirk has selected you to join the away mission to a hostile alien planet! You're excited to have your first assignment outside of the academy, but wait, no one knows your name and you're wearing a red shirt? Looks like you could use a drink.
The principle at work is fairly simple, even if the engineering behind it is somewhat mystifying to the lay observer. Drugs like Rohypnol, GHB and Ketamine can go unnoticed if dropped in your drink, but not if a built-in warning system alerts you not to take another sip. The presence of such compounds in a cocktail will make a DrinkSavvy's 16-oz. plastic cup unmistakably change color.