The planters are made from actual wine bottles. The most difficult part will be to cut off the bottom part of the bottles. This way your plants will be able to beautifully grow inside the bottle and then expand outside its limits.
You take a string and soak it in lighter fluid, then wrap it around the base of the bottle and lite
However, since they will be hanging upside down, using normal soil becomes impossible. Perhaps moss would be a better choice. You can then use some wire or rope and tie it just below the bottle’s threads. Hang it on your deck, terrace or anywhere else you want to.