I bought some bubble bags a while back, and I still haven't made any ice water hash. It looks fairly difficult to do and quite time consuming. And from what I have read and watched on youtube is that using the proper technique makes all the difference in the amount that you yield and the quality of the finished product. I ended up using some dry ice and a coffee can. Put the weed in the can with the dry ice and shook the shit out of it over a mirror, and WALA! I had a shit load of kief in a matter of minutes that is ready to smoke. I also have a glass tube to make BHO too, but I still want to try the ice water extraction way. I heard that it tastes better than any other way that you can make hash, but I haven't ever had the chance to smoke any. Hash doesn't seem to show it's face around my way. It never has either. The only way for me to get it is to make it myself. I just don't like the fact that you lose so much weight turning the flowers into hash that I don't think it justifies making it in the long run. Now if you are just using the trim to make it then it makes complete sense.