When I lived at Old Bar I gave about a kilo of old hops, mostly Galena and Chinese hops, to a mate who soaked them in metho for a week, then filtered the slurry into a wide dish to let the alcohol evaporate off.
This left him with a resin that he scraped up, mixed with tobacco and smoked. He reckoned it was very soothing.
Poor bugger had a degenerative spine disease and was always experimenting with stuff, but 3 years ago didn't have much luck with trying to distill injectable drugs off spent morphine patches. Still miss the crazy bugger.