I've got this small glass bong. I'm attaching a picture of it. The bowl is easy to clean, I just pull it out and put it in alcohol with the kosher salt then pull all the resin out with Q-Tips and such. But the bottom, bulbous, part of the pipe is getting nasty. What is the best was to get down in there and scrub the sides of it? I'd greatly appreciate any advice. Nothing like smoking out of a freshly cleaned piece. Thanks.