I just had a wonderful idea. Find a bong with a sliderstem rather than a carb (i prefer sliders, less potential for a mess) and take out the stem/bowl whatever the smoke is going to traveling through. Take your Un-grinded weed, and pack it into the actual tube part of the bowl/stem where the smoke travels after being lit in the actual bowl itself. Then, the tricky part, is finding some kind of large screen you could glue or rubber band to the end of the stem thats in the water. I guess this WOULD make your weed wet, but that doesn't really matter, just gotta make sure it doesn't get moldy...

The funny thing about this, is that technically you're applying resin to your weed. Most people consider resin a bad thing, though I actually find it to have many sedating cannabinoids. Which I suppose would mean that you don't want to put sativa weed in there, only indica, becuase that's what you're going for. The sedated body high.

What you're looking for is called a Resinator.