^ I've gotten it like that. It's basically the same as crushing up a pill. First you want to get it into small pieces, and then you can fold it in a bill and run a lighter or some other hard object back-and forth over it, then pour the contents into the cooker. I get mine in a plastic baggie, and then put it in cigarette cellophane and fold it over a bunch of times, then bite down on it with my molars a few times, then pour it out to crush up more. I put it on a coaster that is kinda like a tile, and put a card over it and grind into it with it, being careful not to shoot a piece out somewhere.
Also have to be careful that I don't bite through the plastic, which happened about 3 weeks ago and I lost about a point in the cavity of my tooth. It tasted pretty horrible, but just as you would imagine it would, and actually I'm sure most people have tasted dope just not as much as I did at once.
I've also put it in water just like that and had it in a little container where I could shake the hell out of it, but even after 15 mins I still had a long way to go, but with the help of crushing it with the cap of a syringe it got done. The other time I did it that way was so I could allow some to dissolve and do a shot with that, then added more water after the shot to allow more to dissolve, and did my second shot with that, and rinse & repeat to do as many shots of whatever size you want.
Edit: Here are the pics of solid chunks that I got.