you hand make hand hash just freeze teh weed then roll it in your mands for a bit then rub your hands togeather untill it tunrs black and start balling up or you could make bubble hash but you need a bubblebag and more weed
i dont know the yeild but you could make ISO hash
Take the weed shred it up
but it in glas container with a lid
cover the smoke with 99% (or 91%) ISO Alcholal
put on lid and shake vigourisly (i do mine for about 45 minutes)
stain into another glass pan and let sit until all the Alcohole is gone(about two days)
**important do not use a hair dryer it makes the hash harsh**
use a razor to scrape up the hash.
Typically you'll get 10-15 percent return, so for 28 grams your looking at somewhere around 3 grams of hash tops. This method works for sure. http://www.youtube.com/v/neOVTsNr_D8&hl=en&fs=1