Well, take a handful of Comme des Garcons fragrances and you can be busy for hours trying to identify the weirdest notes in the industry.
Comme des Garcons 3 (my sotd today) smells like nothing out on the market...I still don't know what to call some of these notes. Electrified fruit and flowers, perhaps? Guerilla 1 smells like a butcher shop, a little (blood, meat). Garage smells like automotive parts. Odeur 53 smells like....a bunch of weird stuff (copier toner cartridge ink, dust, etc...). Calamus smells to many, like Count Chocula cereal. Guerilla 2 smells just like marijuana burning. Comme des Garcons 2 has a very pronounced ink note (black ink, oily and strong).