Re: Marijuana delivery
That sort of extraction method isn't something that many people are able to do though.There is a Poor Person's Way™.
If the plant matter is ground finely enough, the active incredient will dissolve -- eventually -- in a coffee jar just placed somewhere warm and occasionally agitated. Glycerin (propane-(1,2,3)-triol to give it its proper chemical name) can be bought in major pharmacies. As long as you pre-heat the funnel and stand the (opened) jar in a bowl of warm water to get it nice and runny, you can filter a few ml. at a time -- easily enough for a few refills of a standard 2ml. clearomiser -- through an ordinary coffee filter.
You should have a copy of the necessary Home Office Licence for these experiments near every entrance to your laboratory, of course .....