Behold the waterless gravity bong. Simply pull the bag from inside. : r/StonerEngineering
Vatra Water Pipe Bag — Smokin Js
Amazon.com: Large Smell Proof Bag 11x9 - DOG TESTED 100% Odor Locking Carbon Stash Airtight Container Case - Storage For Smelly Products : Health & Household
Presenting the all-in-one stoner backpack with built in rolling station and secure bong storage. Any ideas of how I can improve this? : r/StonerEngineering