Ok, how about a thread devoted to oil rigs? No price range - China glass to custom heady work. Current wisdom says a small bubbler with minimal diffusion and a male joint is best. What do you think? Like bigger rigs, more diffusion? What works best for you and why. Post about your favorite rig in your collection! I started with my D020, which works fine, I like using a male to male adapter, keeps more heat away from my glass. Then I got this recycler from Kathy: http://www.dhgate.com/store/product/new-small-bong-mini-water-pipe-pocket-glass/190892756.html I wanted to try something closer to the tiny rigs that are popular now. It's 14mm and over 6" high, a good size I think. It's a bit more difficult to clean, cuz you can only kind of pour water through it, rather than shaking (I do use PBW, but have to pour it in with a small funnel). Flavor is maybe a bit better than the D020, but not a huge difference. I have this one on the way, the GB221: http://www.dhgate.com/store/product/new-small-glass-oil-bong-rig-glass-smoking/195996128.html Also 14mm and maybe 5.5" high. I always wanted to try a sidecar.