There are too many factors to determine that. What kind of bong are you looking for? What will you be using out of the bong , flowers concentrate or both? Any certain height? Certain design? Would you like some diffusion ? Bubbler or normal straight tube? What size joint 10, 14 , 18, or 20mm? Glass? Wood ? Acrylic? Thickness? These are just some of the many factors you have to think about when asking this question. With that said i found some pieces off GC's own shop that may help you find what you need. 1. http://www.grasscity.com/us_en/ehle-mexico-straight-cylinder-bong-1000ml-18-8-cozumel.html 2. http://www.grasscity.com/us_en/black-leaf-inline-percolator-glass-layback-tube.html 3. http://www.grasscity.com/us_en/glasscity-10-arm-perc-glass-bubbler-with-reversal-mouthpiece.html 4. http://www.grasscity.com/us_en/glasscity-stemless-diffuser-plate-to-turbine-disc-vapor-tube-with-splash-guard.html 5. http://www.grasscity.com/us_en/weed-star-mentalist-helium-scientific-glass-bubbler-halo-perc.html
Some from USA , some from Mexico and some from the Netherlands . I've ordered from GC multiple times , never had issues. Shipping ranges from 10$-25$ (at least from what I've ordered and shipping to my area) which isn't too bad for glass. They do an excellent job in packaging and protecting your stuff so it gets to you safely. They also are extremely responsive with their customer service . Like I said I've ordered from GC numerous times. Was actually hoping to order again soon now that holidays are over
I like this one, looks like a nice piece http://www.grasscity.com/us_en/glasscity-10-arm-perc-glass-bubbler-with-reversal-mouthpiece.html#.VKtaxxMtFaQ
These glasscity bongs WaxPayne posted would definitely be my choice if I was looking for a new piece. Just search grasscity! Tons of bongs that are sturdy and effective without killing your wallet