Another in the long series of various hydroponic bottles. This is a 500ml square bottle (the kind cell culture media comes in). I cut it in half with a hack saw and flipped the top. This year I let the lettuce go to seed and started some new little plants to do hydroponically. There are a few now but I will split them up when bigger.
Better photo to follow when I find my camera charger.
Obviously don't do this with a bottle that held anything dangerous. My rule is if I would not drink it don't use for hydroponics.
Wine, soda, PBS(as this case), sterile water.... OK.
Acetone, paraformaldehyde, Blush wine..... NO.
Post about wine bottle hydroponics
How to cut a wine bottle with string and acetone