What can you smoke on weed?

[quale]

The title says most of it. I know certain drugs you can smoke on weed (PCP). Others are degraded by the heat before they vaporize (LSD).
What other kinds of things can I sprinkle on weed with reasonable efficency? Black tar? (or will this just melt first and flow away). Meth? (I know there is some debate about 2ct7).
How about your other favorite drugs of abuse (crack)?

 

[JosephTHeSequel]

All you need to use on weed is PCP, but if you are looking to smoke that its better off parsely.

 

[lonewolf]

i think almost all drugs can be smoked on weed, surely crack and meth(reduced efficency)
save your weed for when you're out of good drugs.

 

[skydigger]

I've only smoked crack a couple of times, but I loved the combination of crack and weed.
I know your query was about smoking on weed, but if you haven't already, pop some valium (or another benzo) for a good combo with weed.

 

[Pander Bear]

i think there are issues with smoking just about anything on weed. For say, tar, its not too big a problem. However, since crack melts so readily when you apply a flame, most of it will run down into the guts of your bowl, and remain there until somebody goes out of their way to get it.
What i've heard works it to just plug the bottom of the bowl with the ash from the previous bowl, or some cig ash. That will absorb any liquid goodness and preserve it.
just my .02, I've not much empirical knowledge in the matter.

 

[skydigger]

If you're gonna try crack, just crush up the rock, mix it with your weed and roll a spliff.
It works just fine.

 

[Deus121]

Since this post is about weed, I'm gonna shoot it off to psychedelic drugs.