I try to avoid smoking resin if at all possible... not good for you.
Try putting it in a bowl of rubbing alcohol for a few hours, then wash that shit off with water. You might want to pick up a pack of those wire pipe cleaners at Wal-Mart or your local head shop.
Are you just wanting to clean it to clean it otu and not make use of the residue?
if so...
take a plastic zip lock and toss the pipe in with 4 tablespoons of table salt and enough rubbing alcohol to cover the pipe. Shake it up, let it soak for a while, shake it some more, then rinse it out. You may need to do it again.
I use simple green. It's non-toxic. Soak w/ 1 part simple green 2 parts water overnight or so and then run hot water through it.
don't boil it. that causes tiny cracks in the glass which will weaken it and make it much easier to break. my buddy could never figure out why all his peices kept breaking then he mentioned he boiled them all to clean them. I told him to stop that and he hasen't had any probs since.
you went to bonarroo? sweet. me and my buddies have a hookah purchased from there....good times.