Sort of sounds like a portable GB. I'm more a fan of a lung. You take a 1.5 liter bottle an cut the bottom off so it is level yet open with most of the bottle remaining. You tape the top of a plastic bag around the hole you just cut so it is air tight. Puncture a hole in the bottle cap and force a socket from a socket wrench through the hole until it is snug and air tight. Suck on the opening of the bottle until the entire bag is inside the bottle. Have a friend hold the bottle while you fill the socket with nugget and screw it on. Now, while lighting the nug you need to SLOWLY pull the bag out from inside the bottle. This will suck the flame through the socket an fill the bottle with smoke. Once the entire bag is out unscrew the bottle cap adds suck on the top of the bottle. The entire hit will rocket down your throat up your lungs just like a GB, but portable.