Old School: Fin-de-siecle Paris—absinthe is everywhere. It's totally legal, and supposedly hallucinogenic. What do you do? Sit around, drink lots of the nefarious green liquid and contract a keen case of ennui. A century later, it became legitimately available in the U.S. for the first time, and it tried to take the cocktail market by storm last year -- but then everyone remembered that it tastes terrible.

New School: Candy gurus Lollyphile, at least, are doing their part to make the stuff more palatable and keep the trend alive. Though absinthe’s hallucinogenic qualities are debated, if not outright bunk, these sexy suckers contain the government-mandated limit of the active chemical thujone -- so you'll get whatever rush Toulouse Lautrec was chasing in Paris 100 years ago. Potential downsides: green lips and tongue. Potential upside: buzzing too hard to notice said green lips and tongue.