I think that you can indeed make highly concentrated tinctures that are taken under the tongue but you can also use carbolized marijuana and simply add it to high proof alcohol, something like 75 proof at the lowest or yes, Everclear at the highest. Leave it in a dark glass bottle for between 4 to 8 weeks in a warm place away from sunlight, shaking once daily. At the end of that time you filter the plant material out. Now you have a bottle of Green/Gold Dragon, a marijuana infused alcoholic beverage. Much like with edibles a little goes a long way I hear. So you can mix it with something sweet depending on taste and it's weed in a cup.
I'm looking into it for both the economics of as I am told the kick is greater but with less actual amount of weed and that of course you save your lungs wear and tear.