Separate names with a comma.
Just use a Gravitoke with a 2 liter bottle. Easy gravity bong
Just use a gravitoke. They are cheap gravity bong pieces
Just use a gravitoke, they are like ten bucks
Just use a gravitoke for a gravity or waterfall piece. Duh, winning
I concur, gravity bong rips are probably the most efficient use of the ganj. Picked up a custom Gravitoke from a local shop and it rips harder...
I've seen some simple gravity bong pieces out there, things like Gravitokes. Fit 2 liter bottles etc. Rip like a champ.