The other day while shopping in my local Whole Foods, I got suckered into buying a chilled drink near the check out area. I grabbed a bottle that said "lemonade ginger" and didn't think too much about it until I chugged it in the car- and nearly choked. My eyes watered. My nose burned. It felt like I had accidently inhaled a pile of chili powder. It hurt, but oddly enough, I sort of liked the burn.
The unassuming bottle I had picked up was by Prometheus Spring, which sells three types of capsaicin spiced drinks (capsaicin is extracted from chili peppers and is thought to boost endorphins). In addition to the Lemon Ginger which I tried, there is also Lychee Wasabi and Pomegranate Black Pepper. They're great on their own, but I bet they would be even better laced with vodka or gin.