From Lick Me I'm Delicious, the UK ice cream company known for such stunts as $200 glow-in-the-dark ice cream and Viagra ice cream for the private party of an unnamed (but presumably geriatric) celebrity, comes Edible Mist, which uses "ultrasonic vapourisation" to turn their ice cream flavors into smoke you can suck on with a straw. The idea is to enjoy the taste without the calories.
This part is the best, though: "We can also produce you a personalized mist from pretty much anything in the world, like your favorite book or even your hair." Because that's the problem with books and hair now - too many calories.
Now I'm really curious if there's an STD risk from making one that tastes like cock. Not curious enough to ever try it, but, you know, the thought just popped in there.